package/dav1d: bump version to 0.5.0
Fixes:
http://autobuild.buildroot.net/results/c2e/c2e5b1d8c59d9ca37f06efc67c0928f7df1096ce/
due to upstream commit
https://code.videolan.org/videolan/dav1d/commit/e65abadff6872d319ece76c8617604c628c3126e
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>