Convert CONFIG_ARCH_MISC_INIT to Kconfig

This converts the following to Kconfig:
   CONFIG_ARCH_MISC_INIT

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/bayleybay_defconfig b/configs/bayleybay_defconfig
index 2b2a12a..38fa6e9 100644
--- a/configs/bayleybay_defconfig
+++ b/configs/bayleybay_defconfig
@@ -19,6 +19,7 @@
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 # CONFIG_ARCH_EARLY_INIT_R is not set
 # CONFIG_BOARD_EARLY_INIT_F is not set
+CONFIG_ARCH_MISC_INIT=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_CPU=y
 # CONFIG_CMD_IMLS is not set