drm/amdgpu: refine code for code style.

White space fix.

Signed-off-by: Rex Zhu <[e-mail]>
Reviewed-by: Alex Deucher <[e-mail]>
Reviewed-by: Christian König <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/amdgpu/vce_v2_0.c

···
 		WREG32(mmVCE_UENC_REG_CLOCK_GATING, tmp);
 
 		WREG32(mmVCE_CGTT_CLK_OVERRIDE, 0);
-    } else {
+	} else {
 		tmp = RREG32(mmVCE_CLOCK_GATING_B);
 		tmp |= 0xe7;
 		tmp &= ~0xe70000;