Convert CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR et al to Kconfig

This converts the following to Kconfig:
   CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR
   CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/imx6dl_mamoj_defconfig b/configs/imx6dl_mamoj_defconfig
index a52ce45..8669217 100644
--- a/configs/imx6dl_mamoj_defconfig
+++ b/configs/imx6dl_mamoj_defconfig
@@ -22,6 +22,8 @@
 CONFIG_SYS_SPL_ARGS_ADDR=0x13000000
 CONFIG_SPL_FALCON_BOOT_MMCSD=y
 CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR=0x1000
+CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR=0x800
+CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS=0x10
 CONFIG_SYS_MAXARGS=32
 CONFIG_SYS_PBSIZE=532
 CONFIG_CMD_SPL=y