Add parisc* to the list of architectures requiring PIC flags for shared libs.

Originally committed as revision 14200 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -1866,7 +1866,7 @@ 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*) LIBOBJFLAGS='$(PIC)' ;;
+            x86_64|ia64|alpha|sparc*|power*|parisc*) LIBOBJFLAGS='$(PIC)' ;;
         esac
     fi
 fi