MFV: r356607Import ACPICA 20200110.
MFV: r355716Merge ACPICA 20191213.
Enable ACPICA mutex debugging in INVARIANTS case.This lets us detect lock order reversal in ACPICA code to avoid deadlock.
MFV: r342867Merge ACPICA 20190108.
Merge ACPICA 20180105.
Merge ACPICA 20170728.
Merge ACPICA 20170531.
Merge ACPICA 20170303.
Merge ACPICA 20170119.
Merge ACPICA 20161222.
Merge ACPICA 20160930.
Merge ACPICA 20160422.
Merge ACPICA 20150818.
Merge ACPICA 20150717.
Merge ACPICA 20150619.
Merge ACPICA 20150515.
Merge ACPICA 20150410.
Merge ACPICA 20141107 and 20150204.
Merge ACPICA 20140926.
Move definitions required by userland applications out of acpica_machdep.h.
Merge ACPICA 20130517.
Merge ACPICA 20130117.
Merge ACPICA 20121018.
Merge ACPICA 20120816.
Merge ACPICA 20120711.
12