sb/intel/lynxpoint: Align LP GPIO ACPI with Broadwell

Move the `GWAK` method into the GPIO device, and have lpc.c include the
LP GPIO code. All usages of `GWAK` on mainboards need to be updated.

Change-Id: Id6a41f553d133f960de8b232205ed43b832a83d2
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46775
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/southbridge/intel/lynxpoint/acpi/gpio.asl

@@ -51,10 +51,7 @@ Device (GPIO)
 			Return (0x0)
 		}
 	}
-}
 
-Scope (\_SB.PCI0.LPCB)
-{
 	// GWAK: Setup GPIO as ACPI GPE for Wake
 	// Arg0: GPIO Number
 	Method (GWAK, 1, NotSerialized)

src/southbridge/intel/lynxpoint/acpi/lpc.asl

@@ -199,5 +199,8 @@ Device (LPCB)
 		})
 	}
 
+#if CONFIG(INTEL_LYNXPOINT_LP)
+	#include "gpio.asl"
+#endif
 	#include "acpi/superio.asl"
 }

src/southbridge/intel/lynxpoint/acpi/pch.asl

@@ -76,7 +76,6 @@ Scope (\)
 // Serial IO
 #if CONFIG(INTEL_LYNXPOINT_LP)
 #include "serialio.asl"
-#include "gpio.asl"
 #endif
 
 Method (_OSC, 4)