drm/amd/display: Clean up some inconsistent indenting

No functional modification involved.

smatch warning:

drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn32/display_mode_vba_util_32.c:713 dml32_CalculateSwathWidth() warn: inconsistent indenting.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c

@@ -710,10 +710,10 @@ void dml32_CalculateSwathWidth(
 	unsigned int k, j;
 	enum odm_combine_mode MainSurfaceODMMode;
 
-    unsigned int surface_width_ub_l;
-    unsigned int surface_height_ub_l;
-    unsigned int surface_width_ub_c;
-    unsigned int surface_height_ub_c;
+	unsigned int surface_width_ub_l;
+	unsigned int surface_height_ub_l;
+	unsigned int surface_width_ub_c;
+	unsigned int surface_height_ub_c;
 
 #ifdef __DML_VBA_DEBUG__
 	dml_print("DML::%s: ForceSingleDPP = %d\n", __func__, ForceSingleDPP);