package/xxhash: bump version to 0.8.3
For the relase note, see:
https://github.com/Cyan4973/xxHash/releases/tag/v0.8.3
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
(cherry picked from commit 4b8f2f3a5e45fe2962a9fcdb148d32198929e228)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>