Makefile: Fix android compilation

Makefile: Fix android compilation

Inclue cmdprio for Android as well.
Without the patch, make for Android fails at link time:

engines/io_uring.c:824: error: undefined reference to 'fio_cmdprio_init'
engines/io_uring.c:456: error: undefined reference to 'fio_cmdprio_set_ioprio'
...

Fixes e27b9ff0e ("cmdprio: move cmdprio function definitions to a new cmdprio.c file")

Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Link: https://lore.kernel.org/r/20211117221918.3050439-1-gwendal@chromium.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>