drm/amd/display: do not compare integers of different widths

[Why & How]
Increase width of some variables to avoid comparing integers of
different widths
Reviewed-by: NAlvin Lee <Alvin.Lee2@amd.com>
Tested-by: NDaniel Wheeler <daniel.wheeler@amd.com>
Acked-by: NQingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: NJosip Pavic <Josip.Pavic@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c

@@ -206,8 +206,7 @@ static bool dcn32_check_no_memory_request_for_cab(struct dc *dc)
  */
 static uint32_t dcn32_calculate_cab_allocation(struct dc *dc, struct dc_state *ctx)
 {
-	uint8_t i;
-	int j;
+	int i, j;
 	struct dc_stream_state *stream = NULL;
 	struct dc_plane_state *plane = NULL;
 	uint32_t cursor_size = 0;