Even powerpc/power needs PIC for shared objects today

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@7854 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

configure

@@ -1818,7 +1818,7 @@ if enabled lshared; then
     # LIBOBJFLAGS may have already been set in the OS configuration
     if test -z "$LIBOBJFLAGS" ; then
         case "$arch" in
-            x86_64|ia64|alpha|sparc*) LIBOBJFLAGS="\$(PIC)" ;;
+            x86_64|ia64|alpha|sparc*|power*) LIBOBJFLAGS="\$(PIC)" ;;
         esac
     fi
 fi