mmc: rtsx_usb_sdmmc: make array 'width' static const

array width is on-stack and not modified and should be
made static const.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/rtsx_usb_sdmmc.c

@@ -909,7 +909,7 @@ static int sd_set_bus_width(struct rtsx_usb_sdmmc *host,
 		unsigned char bus_width)
 {
 	int err = 0;
-	u8 width[] = {
+	static const u8 width[] = {
 		[MMC_BUS_WIDTH_1] = SD_BUS_WIDTH_1BIT,
 		[MMC_BUS_WIDTH_4] = SD_BUS_WIDTH_4BIT,
 		[MMC_BUS_WIDTH_8] = SD_BUS_WIDTH_8BIT,