ti_armv7_common: env: Consolidate MMC args

Define default mmc args in ti_armv7_common.h so that all
TI platforms can reuse.

Reported-by: Yan Liu <yan-liu@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h
index 15fa3e3..d868442 100644
--- a/include/configs/am43xx_evm.h
+++ b/include/configs/am43xx_evm.h
@@ -216,6 +216,7 @@
 #ifndef CONFIG_SPL_BUILD
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	DEFAULT_LINUX_BOOT_ENV \
+	DEFAULT_MMC_TI_ARGS \
 	"fdtfile=undefined\0" \
 	"bootpart=0:2\0" \
 	"bootdir=/boot\0" \
@@ -225,18 +226,11 @@
 		"uuid_disk=${uuid_gpt_disk};" \
 		"name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}\0" \
 	"optargs=\0" \
-	"mmcdev=0\0" \
-	"mmcroot=/dev/mmcblk0p2 rw\0" \
-	"mmcrootfstype=ext4 rootwait\0" \
 	"usbroot=/dev/sda2 rw\0" \
 	"usbrootfstype=ext4 rootwait\0" \
 	"usbdev=0\0" \
 	"ramroot=/dev/ram0 rw\0" \
 	"ramrootfstype=ext2\0" \
-	"mmcargs=setenv bootargs console=${console} " \
-		"${optargs} " \
-		"root=${mmcroot} " \
-		"rootfstype=${mmcrootfstype}\0" \
 	"usbargs=setenv bootargs console=${console} " \
 		"${optargs} " \
 		"root=${usbroot} " \
@@ -268,7 +262,7 @@
 			"if run loadimage; then " \
 				"run loadfdt; " \
 				"echo Booting from mmc${mmcdev} ...; " \
-				"run mmcargs; " \
+				"run args_mmc; " \
 				"bootz ${loadaddr} - ${fdtaddr}; " \
 			"fi;" \
 		"fi;\0" \