Wifi: Add ether_type to sending offloaded packet

This commit adds the ether_type as an argument to the legacy hal
function to send an offloaded packet.

Bug: 122487582
Test: Manual
Test: Make sure ether_type is passed all the way to vendor hal function
Change-Id: I5918088000cc455e7f83feddc1090803ccc04c06
3 files changed