STAGING: Move staging drivers back to staging-specific menu

Signed-off-by: Dmitry Baryshkov <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/Kconfig

···
 	  If in doubt, say N here.
 
 
+if STAGING
+
 config STAGING_EXCLUDE_BUILD
 	bool "Exclude Staging drivers from being built" if STAGING
 	default y
···
 source "drivers/staging/poch/Kconfig"
 
 endif # !STAGING_EXCLUDE_BUILD
+endif # STAGING