recipes: Fix charset.alias for musl

This is same gnulib fix replicated across needed recipes

Change-Id: I756713407111a726eae98e26c9c1ff64981371c0
(From OE-Core rev: fbe6d2c12aa9f7956bc87efeb68cb64b26b60c7a)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/patch/patch/0001-Unset-need_charset_alias-when-building-for-musl.patch

@@ -0,0 +1,33 @@
+From b9565dc2fe0c4f7daaec91b7e83bc7313dee2f4a Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 13 Apr 2015 17:02:13 -0700
+Subject: [PATCH] Unset need_charset_alias when building for musl
+
+localcharset uses ac_cv_gnu_library_2_1 from glibc21.m4
+which actually shoudl be fixed in gnulib and then all downstream
+projects will get it eventually. For now we apply the fix to
+coreutils
+
+Upstream-Status: Not Required
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ lib/gnulib.mk | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/gnulib.mk b/lib/gnulib.mk
+index e1d74db..c0e92dd 100644
+--- a/lib/gnulib.mk
++++ b/lib/gnulib.mk
+@@ -1882,7 +1882,7 @@ install-exec-localcharset: all-local
+ 	  case '$(host_os)' in \
+ 	    darwin[56]*) \
+ 	      need_charset_alias=true ;; \
+-	    darwin* | cygwin* | mingw* | pw32* | cegcc*) \
++	    darwin* | cygwin* | mingw* | pw32* | cegcc* | linux-musl*) \
+ 	      need_charset_alias=false ;; \
+ 	    *) \
+ 	      need_charset_alias=true ;; \
+-- 
+2.1.4
+