avdevice: bump major

Our previous release (1.1) contained a version 54 libavdevice
and this version here is not ABI compatible thus a bump is
needed
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavdevice/version.h

@@ -27,8 +27,8 @@
 
 #include "libavutil/avutil.h"
 
-#define LIBAVDEVICE_VERSION_MAJOR  54
-#define LIBAVDEVICE_VERSION_MINOR   4
+#define LIBAVDEVICE_VERSION_MAJOR  55
+#define LIBAVDEVICE_VERSION_MINOR   0
 #define LIBAVDEVICE_VERSION_MICRO 100
 
 #define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \