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/sc_sps_1_defconfig b/configs/sc_sps_1_defconfig
index ed8b94a..e2a8e3c 100644
--- a/configs/sc_sps_1_defconfig
+++ b/configs/sc_sps_1_defconfig
@@ -7,6 +7,7 @@
 CONFIG_BOOTDELAY=3
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_ARCH_MISC_INIT=y
 CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_SPL=y
 CONFIG_HUSH_PARSER=y