package/ffmpeg: bump version to 3.1.3

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/ffmpeg/ffmpeg.hash

@@ -1,2 +1,2 @@
 # Locally calculated
-sha256 58d2a2b69f0f46fe8aacd45e582c62e380ba611b5baf6a4dfcf2906eb2b9bd61  ffmpeg-3.1.2.tar.xz
+sha256 f8575c071e2a64437aeb70c8c030b385cddbe0b5cde20c9b18a6def840128822  ffmpeg-3.1.3.tar.xz

package/ffmpeg/ffmpeg.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-FFMPEG_VERSION = 3.1.2
+FFMPEG_VERSION = 3.1.3
 FFMPEG_SOURCE = ffmpeg-$(FFMPEG_VERSION).tar.xz
 FFMPEG_SITE = http://ffmpeg.org/releases
 FFMPEG_INSTALL_STAGING = YES