mb/google/octopus/variants/lick: Disable xHCI compliance mode

Since the first LFPS timeout causes xHCI to enter compliance
mode, the SS hub cannot be enumerated. The resolution is to
disable xHCI compliance mode.

BRANCH=octopus
BUG=b:153782196
TEST=Verified usb operation successfully.

Signed-off-by: Julia Tsai <julia.tsai@lcfc.corp-partner.google.com>
Change-Id: If0bf68c8cf0a2a3b857395b6b82e46cc384ba65c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39874
Reviewed-by: Henry Sun <henrysun@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/octopus/variants/lick/overridetree.cb

@@ -112,4 +112,8 @@ chip soc/intel/apollolake
 			end
 		end	# - I2C 6
 	end
+
+	# Disable compliance mode
+
+	register "DisableComplianceMode" = "1"
 end