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/bcm11130_defconfig b/configs/bcm11130_defconfig
index 3d96ef9..f13c277 100644
--- a/configs/bcm11130_defconfig
+++ b/configs/bcm11130_defconfig
@@ -3,6 +3,7 @@
 CONFIG_SYS_TEXT_BASE=0xae000000
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_SYS_EXTRA_OPTIONS="SYS_MMC_ENV_DEV=0"
+CONFIG_MISC_INIT_R=y
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_DISPLAY_CPUINFO is not set
 # CONFIG_DISPLAY_BOARDINFO is not set