nfc: nci: Fix handling of zero-length payload packets in nci_rx_work()

nfc: nci: Fix handling of zero-length payload packets in nci_rx_work()

When nci_rx_work() receives a zero-length payload packet, it should not
discard the packet and exit the loop. Instead, it should continue
processing subsequent packets.

Fixes: d24b03535e5e ("nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet")
Signed-off-by: Ryosuke Yasuoka <ryasuoka@redhat.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240521153444.535399-1-ryasuoka@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>