ARM: do not use movw/movt for relocatable values with PIC

Originally committed as revision 19886 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/arm/asm.S

@@ -44,7 +44,7 @@ ELF     .type   \name, %function
         .endm
 
         .macro movrel rd, val
-#if HAVE_ARMV6T2 && !CONFIG_SHARED
+#if HAVE_ARMV6T2 && !CONFIG_SHARED && !CONFIG_PIC
         movw            \rd, #:lower16:\val
         movt            \rd, #:upper16:\val
 #else