ARM: rmobile: Enable MMC extensions

Enable extended MMC commands and GPT partition table support.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
---
V2: Rebase on u-boot/master

arch/arm/mach-rmobile/Kconfig

@@ -13,6 +13,11 @@ config RCAR_GEN3
 	select ARM64
 	select PHY
 	select CMD_CACHE
+	imply CMD_FS_UUID
+	imply CMD_GPT
+	imply CMD_UUID
+	imply CMD_MMC_SWRITE if MMC
+	imply SUPPORT_EMMC_RPMB if MMC
 
 endchoice