ARM: mach-meson: select MMC_PWRSEQ config

Before time, PWRSEQ is selected since below commit.
commit 262d3436 ("board: amlogic: select PWRSEQ for all amlogic platform")
Select MMC_PWRSEQ config because of introducing CONFIG_MMC_PWRSEQ for
only eMMC module.
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>

arch/arm/mach-meson/Kconfig

@@ -9,6 +9,7 @@ config MESON64_COMMON
 	select SYSCON
 	select REGMAP
 	select PWRSEQ
+	select MMC_PWRSEQ
 	select BOARD_LATE_INIT
 	imply CMD_DM