drm/amdgpu: decline max_me for mec2_fw remove in renoir/arcturus

The value of max_me in amdgpu_gfx_rlc_setup_cp_table should reduce to 4
when mec2_fw is removed on asic renoir/arcturus. Or it will cause kernel
NULL pointer when modprobe driver.
Signed-off-by: Changfeng <Changfeng.Zhu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

@@ -1890,7 +1890,10 @@ static void gfx_v9_0_enable_lbpw(struct amdgpu_device *adev, bool enable)
 
 static int gfx_v9_0_cp_jump_table_num(struct amdgpu_device *adev)
 {
-	return 5;
+	if (gfx_v9_0_load_mec2_fw_bin_support(adev))
+		return 5;
+	else
+		return 4;
 }
 
 static int gfx_v9_0_rlc_init(struct amdgpu_device *adev)