uksm-3.11: merge UKSM v0.1.2.2 for 3.10
uksm-3.12: try to port UKSM for 3.10/3.11 for 3.12
uksm-3.13: possible port of UKSM for 3.13 branch
Merge branch 'uksm-3.13' into pf-3.13