numactl: Link with libatomic on rv64/rv32

bring a missing commit from meta-oe

Fixes
riscv64-yoe-linux/10.2.0/ld: ./.libs/libnuma.so: undefined reference to `__atomic_fetch_and_1'

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>