ena: Update driver version to v2.8.0

Features:

• Add support for device request reset message over AENQ
• Support LLQ entry size recommendation from device
• Support max large LLQ depth from the device
• Expand PHC infrastructures
• Configuration notification support

Bug Fixes:

• Fix leaking ifmedia resources on detach
• Fix netmap socket chain unmapping issue
• Properly reinit netmap structs upon sysctl changes
• Correctly count missing TX completions

Minor Changes:

• Add reset reason for corrupted TX/RX completion descriptors
• Add reset reason for missing admin interrupts
• Improve reset reason statistics
• Update licenses

Approved by: cperciva (mentor)
Sponsored by: Amazon, Inc.

(cherry picked from commit ce4cc746bb4171a131ab9099947a500c0de18ff4)