Revert "global: Remove CONFIG_SYS_EXTRA_OPTIONS support"

Unfortunately, we require additional logic to buildman to support this
removal and still use SYS_SOC, etc, for build targets.

This reverts commit eeec00072d.

Signed-off-by: Tom Rini <trini@konsulko.com>

scripts/Makefile.autoconf

@@ -100,6 +100,10 @@ tpl/include/autoconf.mk: tpl/u-boot.cfg
 # Prior to Kconfig, it was generated by mkconfig. Now it is created here.
 define filechk_config_h
 	(echo "/* Automatically generated - do not edit */";		\
+	for i in $$(echo $(CONFIG_SYS_EXTRA_OPTIONS) | sed 's/,/ /g'); do \
+		echo \#define CONFIG_$$i				\
+		| sed '/=/ {s/=/	/;q; } ; { s/$$/	1/; }'; \
+	done;								\
 	echo \#define CONFIG_BOARDDIR board/$(if $(VENDOR),$(VENDOR)/)$(BOARD);\
 	echo \#include \<config_uncmd_spl.h\>;				\
 	echo \#include \<configs/$(CONFIG_SYS_CONFIG_NAME).h\>;		\

scripts/build-whitelist.sh

@@ -10,13 +10,30 @@
 #
 export LC_ALL=C LC_COLLATE=C
 
-# Looks for the rest of the CONFIG options, but exclude those in Kconfig and
-# defconfig files.
+# There are two independent greps. The first pulls out the component parts
+# of CONFIG_SYS_EXTRA_OPTIONS. An example is:
 #
+#	SUN7I_GMAC,AHCI,SATAPWR=SUNXI_GPB(8)
+#
+# We want this to produce:
+#	CONFIG_SUN7I_GMAC
+#	CONFIG_AHCI
+#	CONFIG_SATAPWR
+#
+# The second looks for the rest of the CONFIG options, but excludes those in
+# Kconfig and defconfig files.
+#
+(
+git grep CONFIG_SYS_EXTRA_OPTIONS |sed -n \
+	's/.*CONFIG_SYS_EXTRA_OPTIONS="\(.*\)"/\1/ p' \
+	| tr , '\n' \
+	| sed 's/ *\([A-Za-z0-9_]*\).*/CONFIG_\1/'
+
 git grep CONFIG_ | \
 	egrep -vi "(Kconfig:|defconfig:|README|\.py|\.pl:)" \
 	| tr ' \t' '\n\n' \
-	| sed -n 's/^\(CONFIG_[A-Za-z0-9_]*\).*/\1/p' \
+	| sed -n 's/^\(CONFIG_[A-Za-z0-9_]*\).*/\1/p'
+) \
 	|sort |uniq >scripts/config_whitelist.txt.tmp1;
 
 # Finally, we need a list of the valid Kconfig options to exclude these from