doh!

iasl -p kernel/firmware/acpi/cp2112 cp2112.asl
cp2112.asl      7:     Scope (S0A) // USB0
Error    6085 -
Intel ACPI Component Architecture
ASL+ Optimizing Compiler/Disassembler version 20220331
Copyright (c) 2000 - 2022 Intel Corporation
ASL Input:     cp2112.asl -    4063 bytes     44 keywords    153 source lines
AML Output:    kernel/firmware/acpi/cp2112.aml -     761 bytes     20 opcodes      24 named objects
Compilation successful. 0 Errors, 0 Warnings, 0 Remarks, 8 Optimizations
                ^ Object not found or not accessible from current scope (S0A_)

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>