Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:226:29: warning: ‘UVD0_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:219:29: warning: ‘USB0_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:212:29: warning: ‘UMC_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:205:29: warning: ‘THM_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:198:29: warning: ‘SMUIO_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:191:29: warning: ‘SDMA0_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:184:29: warning: ‘PCIE0_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:177:29: warning: ‘OSSSYS_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:172:29: warning: ‘DCN_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:165:29: warning: ‘NBIF0_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:158:29: warning: ‘MP1_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:151:29: warning: ‘MP0_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:144:29: warning: ‘MMHUB_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:137:29: warning: ‘L2IMU0_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:130:29: warning: ‘ISP_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:123:29: warning: ‘IOHC0_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:116:29: warning: ‘HDP_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:109:29: warning: ‘HDA_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:102:29: warning: ‘GC_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:95:29: warning: ‘FUSE_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:88:29: warning: ‘DPCS_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:81:29: warning: ‘DMU_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:74:29: warning: ‘DIO_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:67:29: warning: ‘DF_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:60:29: warning: ‘DBGU_IO0_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:53:29: warning: ‘CLK_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:46:29: warning: ‘ATHUB_BASE’ defined but not used [-Wunused-const-variable=]
 drivers/gpu/drm/amd/amdgpu/../include/renoir_ip_offset.h:39:29: warning: ‘ACP_BASE’ defined but not used [-Wunused-const-variable=]

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>