gcc-cross-initial: Fix typo causing limits.h not to be present

(From OE-Core rev: f26014b1b2e7ae0a23829487ca0c0bc05043b5d7)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/gcc/gcc-cross-initial.inc

@@ -34,6 +34,6 @@ do_compile () {
 # so we overwirte the generated include-fixed/limits.h for gcc-cross-initial
 # to get rid references to real limits.h
 
-do_install_append1() {
+do_install_append () {
     cp gcc/include-fixed/limits.h ${D}${gcclibdir}/${TARGET_SYS}/${BINV}/include-fixed/limits.h
 }