busybox: squashed commit of merging cm-12.1

With fixes to LOCAL_C_INCLUDES for libsepol in M and fixed
some missing includes to enable building for 64 bit devices

Conflicts:
	Android.mk
	android/libc/arch-x86/syscalls/swapoff.S
	android/libc/arch-x86/syscalls/swapon.S
	android/libc/arch-x86/syscalls/sysinfo.S
	android/librpc/pmap_rmt.c
	android/reboot.c
	include-full/copy-current.sh
	include-minimal/copy-current.sh
	include/platform.h
	networking/interface.c
	networking/nslookup.c

Change-Id: If6092fa87f3d21190db1af4f70daa150eb462660
diff --git a/Config.in b/Config.in
index 03c2d03..2c4be2e 100644
--- a/Config.in
+++ b/Config.in
@@ -161,12 +161,13 @@
 	  Internal implementation is smaller.
 
 config FEATURE_CHECK_UNICODE_IN_ENV
-	bool "Check $LANG environment variable"
+	bool "Check $LC_ALL, $LC_CTYPE and $LANG environment variables"
 	default n
 	depends on UNICODE_SUPPORT && !UNICODE_USING_LOCALE
 	help
 	  With this option on, Unicode support is activated
-	  only if LANG variable has the value of the form "xxxx.utf8"
+	  only if locale-related variables have the value of the form
+	  "xxxx.utf8"
 
 	  Otherwise, Unicode support will be always enabled and active.