run-make-check.sh: increase fs.aio-max-nr

run-make-check.sh: increase fs.aio-max-nr

without this change the seastar based tests fail on host with 48 cores,
because the /proc/sys/fs/aio-nr used by the tests is greater than
1048576. if run-make-check.sh is used to launch the test, the default
job number is `$(nproc) / 2`, and the peak number of /proc/sys/fs/aio-nr
when running ctest was 3190848 when testing on the 48-core host.

so we need to increase fs.aio-max-nr accordingly to the available cores
on the host.

Signed-off-by: Kefu Chai <kchai@redhat.com>