Install in $kerneldir/../extra/dpdk. Usually $kerneldir should something
like: /lib/modules/$kver/build, so this directory will match the default
one used by legacy makefiles.
Fixes: a52f4574f798 ("igb_uio: build with meson")
Cc: stable@dpdk.org
Signed-off-by: Luca Boccassi <bluca@debian.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>