gcc: Fix fail to compile since they can't find limits.h include.

With gcc package on my build machine gcc can't find limits.h include.

$ cat x.c

$ gcc -M x.c
In file included from x.c:1:
/usr/include/limits.h:125:26: error: no include path in which to search for limits.h

This patch adds missing includes to gcc package.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

meta/packages/gcc/gcc-cross_4.3.3.bb

@@ -1,4 +1,4 @@
-PR = "r6"
+PR = "r7"
 
 require gcc-${PV}.inc
 require gcc-cross4.inc

meta/packages/gcc/gcc-package-target.inc

@@ -21,6 +21,7 @@ FILES_${PN} = "\
   ${gcclibdir}/${TARGET_SYS}/${BINV}/specs \
   ${gcclibdir}/${TARGET_SYS}/${BINV}/lib* \
   ${gcclibdir}/${TARGET_SYS}/${BINV}/include \
+  ${gcclibdir}/${TARGET_SYS}/${BINV}/include-fixed \
 "
 FILES_${PN}-symlinks = "\
   ${bindir}/cc \

meta/packages/gcc/gcc_4.3.3.bb

@@ -1,4 +1,4 @@
-PR = "r5"
+PR = "r6"
 
 require gcc-${PV}.inc
 require gcc-configure-target.inc