busybox: Patch to build with clang

packages/busybox/Makefile.patch

@@ -0,0 +1,12 @@
+diff -u -r ../busybox-1.26.2/Makefile ./Makefile
+--- ../busybox-1.26.2/Makefile	2017-01-10 17:01:16.000000000 +0100
++++ ./Makefile	2017-06-27 23:34:15.465534834 +0200
+@@ -289,7 +289,7 @@
+ # Make variables (CC, etc...)
+ 
+ AS		= $(CROSS_COMPILE)as
+-CC		= $(CROSS_COMPILE)gcc
++CC		= $(CROSS_COMPILE)clang
+ LD		= $(CC) -nostdlib
+ CPP		= $(CC) -E
+ AR		= $(CROSS_COMPILE)ar