mtd: spi-nor: mtk-quadspi: add SNOR_HWCAPS_READ to spi_nor_hwcaps mask

SNOR_HWCAPS_READ should be supported by this controller, so add this
flag to spi_nor_hwcaps mask.
Signed-off-by: Guochun Mao <guochun.mao@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>

drivers/mtd/spi-nor/mtk-quadspi.c

@@ -431,7 +431,8 @@ static int mtk_nor_init(struct mtk_nor *mtk_nor,
 			struct device_node *flash_node)
 {
 	const struct spi_nor_hwcaps hwcaps = {
-		.mask = SNOR_HWCAPS_READ_FAST |
+		.mask = SNOR_HWCAPS_READ |
+			SNOR_HWCAPS_READ_FAST |
 			SNOR_HWCAPS_READ_1_1_2 |
 			SNOR_HWCAPS_PP,
 	};