Comment # 8 on bug 1207149 from Takashi Iwai

Good to hear!  Now I merged the backport patches to SLE15-SP4 branch, as well
as stable branch.

FWIW, the relevant upstream commits are:
7a9d74e7e403cb2e60d4d00c05f2f3ab2a33d0c3
    ACPICA: include/acpi/acpixf.h: Fix indentation
54c516aeb8b39eeae6450b7d8076d381568dca46
    ACPICA: Allow address_space_handler Install and _REG execution as 2
separate steps
a5072078dbfaa9d70130805766dfa34bbb7bf2a7
    ACPI: EC: Fix EC address space handler unregistration
ab4620f58d38206687b9f99d9d2cc1d5a2640985
    ACPI: EC: Fix ECDT probe ordering issues