net: airoha: Enable RX queues 16-31

Fix RX_DONE_INT_MASK definition in order to enable RX queues 16-31.

Fixes: f252493e ("net: airoha: Enable multiple IRQ lines support in airoha_eth driver.")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250609-aioha-fix-rx-queue-mask-v1-1-f33706a06fa2@kernel.org


Signed-off-by: Jakub Kicinski <kuba@kernel.org>