MFC: r340090, r342056Merge ACPICA 20181031 and 20181213.
Update ACPICA to 20181003.Approved by: re (gjb)
MFV: r334448Import ACPICA 20180531.
MFV: r333378Import ACPICA 20180508.
Merge ACPICA 20180313.
MFV: r329072Merge ACPICA 20180209.
Merge ACPICA 20180105.
MFC: r326864Merge ACPICA 20171214.
Merge ACPICA 20170831.
Merge ACPICA 20170728.
Merge ACPICA 20170531.
Merge ACPICA 20170303.
Merge ACPICA 20170119.
Merge ACPICA 20161222.
Merge ACPICA 20161117.
Merge ACPICA 20160930.
Merge ACPICA 20160527.Relnotes: yes
Merge ACPICA 20160422.
Merge ACPICA 20150818.
Merge ACPICA 20150717.
Merge ACPICA 20150619.
Merge ACPICA 20150410.
Merge ACPICA 20141107 and 20150204.
Merge ACPICA 20140926.
Merge ACPICA 20130725.
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