Convert CONFIG_MISC_INIT_R to Kconfig

This converts the following to Kconfig:
   CONFIG_MISC_INIT_R

Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Update the defaults logic slightly]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/controlcenterd_TRAILBLAZER_defconfig b/configs/controlcenterd_TRAILBLAZER_defconfig
index 1aa1d72..163d369 100644
--- a/configs/controlcenterd_TRAILBLAZER_defconfig
+++ b/configs/controlcenterd_TRAILBLAZER_defconfig
@@ -7,6 +7,7 @@
 CONFIG_SYS_EXTRA_OPTIONS="TRAILBLAZER,SPIFLASH"
 CONFIG_BOOTDELAY=-2
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
+# CONFIG_MISC_INIT_R is not set
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_BOARD_EARLY_INIT_R=y