Update ffmpeg for armeb target.

extras/contrib/src/Patches/ffmpeg-svn-grab.patch

---- ffmpeg/libavformat/grab.c.orig	2007-05-14 16:36:34.000000000 +0200
-+++ ffmpeg/libavformat/grab.c	2007-05-14 16:36:50.000000000 +0200
-@@ -27,6 +27,7 @@
- #define _LINUX_TIME_H 1
- #include <linux/videodev.h>
- #include <time.h>
-+#include <strings.h>
- 
- typedef struct {
-     int fd;

extras/contrib/src/Patches/ffmpeg-svn-uclibc.patch

@@ -11,12 +11,3 @@
    alpha)
      arch="alpha"
      enable fast_64bit
-@@ -1567,7 +1567,7 @@
- EOF
- else
-     # programs cannot be launched if cross compiling, so make a static guess
--    if test "$arch" = "powerpc" -o "$arch" = "mips" ; then
-+    if test "$arch" = "powerpc" -o "$arch" = "mips" -o "$arch" = "armeb"; then
-         bigendian="yes"
-     fi
- fi