configure: Fix libvmaf name

Fixes:
    fatal error: libvmaf.h: No such file or directory.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This commit is contained in:
Matt Oliver 2017-07-17 00:15:19 +10:00 committed by Derek Buitenhuis
parent a27c412795
commit d8f1982639