drm/amdgpu: Clean up style problems in mmhub_v2_3.c

Fixes the following:

ERROR: code indent should use tabs where possible
WARNING: Missing a blank line after declarations
WARNING: Prefer 'unsigned int' to bare use of 'unsigned'
WARNING: suspect code indent for conditional statements (8, 24)
+       if (!(data & (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
[...]
+                       *flags |= AMD_CG_SUPPORT_MC_MGCG;

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c

@@ -331,7 +331,7 @@ static void mmhub_v2_3_setup_vmid_config(struct amdgpu_device *adev)
 static void mmhub_v2_3_program_invalidation(struct amdgpu_device *adev)
 {
 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
-	unsigned i;
+	unsigned int i;
 
 	for (i = 0; i < 18; ++i) {
 		WREG32_SOC15_OFFSET(MMHUB, 0,
@@ -406,6 +406,7 @@ static void mmhub_v2_3_set_fault_enable_default(struct amdgpu_device *adev,
 						bool value)
 {
 	u32 tmp;
+
 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL);
 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 			    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);