IA64: do not automatically enable hardcoded tables if explicitly disabled

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@20465 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

configure

@@ -1807,7 +1807,7 @@ case "$arch" in
         enable fast_64bit
         spic=$shared
         # HACK: currently fails to build if .bss is > 4MB and shared libs are built
-        enabled shared && enable hardcoded_tables
+        enabled shared && enable_weak hardcoded_tables
     ;;
     m68k)
         arch="m68k"