Convert CONFIG_SPL_DRIVERS_MISC et al to Kconfig

This converts the following to Kconfig:
   CONFIG_SPL_DRIVERS_MISC
   CONFIG_SPL_ENV_SUPPORT
   CONFIG_SPL_GPIO
   CONFIG_SPL_I2C
   CONFIG_SPL_LDSCRIPT
   CONFIG_SPL_LIBCOMMON_SUPPORT
   CONFIG_SPL_LIBGENERIC_SUPPORT
   CONFIG_SPL_LOAD_FIT_ADDRESS
   CONFIG_SPL_MMC
   CONFIG_SPL_NAND_SUPPORT
   CONFIG_SPL_NO_CPU_SUPPORT
   CONFIG_SPL_OS_BOOT
   CONFIG_SPL_POWER
   CONFIG_SPL_STACK_R
   CONFIG_SPL_STACK_R_ADDR
   CONFIG_SPL_WATCHDOG
   CONFIG_SPL_TEXT_BASE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/imx6dl_mamoj_defconfig b/configs/imx6dl_mamoj_defconfig
index a86aee2..71759d8 100644
--- a/configs/imx6dl_mamoj_defconfig
+++ b/configs/imx6dl_mamoj_defconfig
@@ -11,6 +11,7 @@
 CONFIG_TARGET_MX6DL_MAMOJ=y
 CONFIG_DEFAULT_DEVICE_TREE="imx6dl-mamoj"
 CONFIG_SPL_TEXT_BASE=0x00908000
+CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_IMX_HAB=y
 # CONFIG_CMD_BMODE is not set
 CONFIG_DISTRO_DEFAULTS=y