v5.7.2-im-eee

Debug version for external testing. Stable in my environment

• Explicitly rejecting packets when transmit queue is busy (before that it was kind of silent)
• Increased default queue capacity from 256 to 1024
• Added options to (un)select EEE mode (there are notes that disabling it could fix spontaneous link problems)
• Ensured software interrupt register in watchdog for rx ring cleaned