drm/amd/display: Remove return value of Calculate256BBlockSizes

The function Calculate256BBlockSizes always returns true, regardless of
the parameters. As any file checks the return of the function, this
commit changes the return value to void.
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c

@@ -958,7 +958,7 @@ static void recalculate_params(
 	}
 }
 
-bool Calculate256BBlockSizes(
+void Calculate256BBlockSizes(
 		enum source_format_class SourcePixelFormat,
 		enum dm_swizzle_mode SurfaceTiling,
 		unsigned int BytePerPixelY,
@@ -996,7 +996,6 @@ bool Calculate256BBlockSizes(
 		*BlockWidth256BytesY = 256 / BytePerPixelY / *BlockHeight256BytesY;
 		*BlockWidth256BytesC = 256 / BytePerPixelC / *BlockHeight256BytesC;
 	}
-	return true;
 }
 
 bool CalculateMinAndMaxPrefetchMode(

drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.h

@@ -169,7 +169,7 @@ bool get_is_phantom_pipe(struct display_mode_lib *mode_lib,
 		unsigned int pipe_idx);
 void PixelClockAdjustmentForProgressiveToInterlaceUnit(struct display_mode_lib *mode_lib);
 
-bool Calculate256BBlockSizes(
+void Calculate256BBlockSizes(
 		enum source_format_class SourcePixelFormat,
 		enum dm_swizzle_mode SurfaceTiling,
 		unsigned int BytePerPixelY,