Convert CONFIG_MISC_INIT_F et al to Kconfig

This converts the following to Kconfig:
   CONFIG_MISC_INIT_F
   CONFIG_MISC_INIT_R

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/kmcent2_defconfig b/configs/kmcent2_defconfig
index 16ec0fa..d027828 100644
--- a/configs/kmcent2_defconfig
+++ b/configs/kmcent2_defconfig
@@ -17,6 +17,7 @@
 CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_BOARD_EARLY_INIT_R=y
 CONFIG_LAST_STAGE_INIT=y
+CONFIG_MISC_INIT_F=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_DM=y
 CONFIG_CMD_I2C=y