drivers: move STANDALONE to drivers/base/Kconfig

Move STANDALONE from init/Kconfig to drivers/base/Kconfig .
This way, it's besides PREVENT_FIRMWARE_BUILD.
Signed-off-by: Adrian Bunk <bunk@fs.tum.de>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

drivers/base/Kconfig

 menu "Generic Driver Options"
 
+config STANDALONE
+	bool "Select only drivers that don't need compile-time external firmware" if EXPERIMENTAL
+	default y
+	help
+	  Select this option if you don't have magic firmware for drivers that
+	  need it.
+
+	  If unsure, say Y.
+
 config PREVENT_FIRMWARE_BUILD
 	bool "Prevent firmware from being built"
 	default y

init/Kconfig

@@ -41,15 +41,6 @@ config CLEAN_COMPILE
 
 	  If unsure, say Y
 
-config STANDALONE
-	bool "Select only drivers that don't need compile-time external firmware" if EXPERIMENTAL
-	default y
-	help
-	  Select this option if you don't have magic firmware for drivers that
-	  need it.
-
-	  If unsure, say Y.
-
 config BROKEN
 	bool
 	depends on !CLEAN_COMPILE