Change in coreboot[master]: soc/intel/apollolake/acpi: Replace Add(a,b) with ASL 2.0 syntax

[HAOUAS Elyes (Code Review)]

Attention is currently required from: Felix Singer, Andrey Petrov, Patrick Rudolph.
HAOUAS Elyes has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/60504 )

Change subject: soc/intel/apollolake/acpi: Replace Add(a,b) with ASL 2.0 syntax
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Patch Set 2:

(1 comment)

File src/soc/intel/apollolake/acpi/gpiolib.asl:

https://review.coreboot.org/c/coreboot/+/60504/comment/fefbd06d_f37658f2 
PS2, Line 47: 0x4
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