Support interrupts binding in GICv3 and ITS

• Add MOVI command and routine for the LPI migration
• Allow to search for the ITS device descriptor using not only devID but also LPI number.
• Bind SPIs in the Distributor
• Don't bind its_dev to collection. Keep track of the collection IDs for each LPI.

Reviewed by: wma
Obtained from: Semihalf
Sponsored by: Cavium
Differential Revision: https://reviews.freebsd.org/D5231