Add MIPS to list of architectures requiring PIC flags.

Prior to gcc version 4.3 PIC was the default, now it needs to be enabled
explicitly. Passing the flag to older gcc versions does not hurt.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@15392 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

configure

@@ -1897,7 +1897,7 @@ if enabled shared; then
     # LIBOBJFLAGS may have already been set in the OS configuration
     if test -z "$LIBOBJFLAGS" ; then
         case "$arch" in
-            x86_64|ia64|alpha|sparc*|power*|parisc*) LIBOBJFLAGS='$(PIC)' ;;
+            x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
         esac
     fi
 fi