configure.ac: Rename the  gallium_require_llvm helper

Drop the gallium prefix since we're about it use it throughout the
configure.

Note we do want to check for enable_gallium_llvm check since (as
explicitly requested) the toggle should mean --enable-llvm. Latter of
which to be resolved with later patches.

Cc: Dave Airlie <airlied@redhat.com>
Cc: "17.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Tobias Droste <tdroste@gmx.de>
1 file changed