fix asterisk 1.6.x compile on powerpc

git-svn-id: svn://svn.openwrt.org/openwrt/packages@14416 3c298f89-4303-0410-b956-a3cf2f4a3e73

net/asterisk-1.6.x/patches/210-ppc_fix.patch

@@ -0,0 +1,10 @@
+--- a/apps/app_festival.c
++++ b/apps/app_festival.c
+@@ -120,6 +120,7 @@
+ 	int res;
+ #ifdef __PPC__ 
+ 	char c;
++	int x;
+ #endif
+ 
+ 	res = ast_safe_fork(0);