sb/intel/bd82x6x/pch.asl: Remove GPIO configuration access

Allowing access to change GPIO configuration from ACPI is asking
for trouble. Kill it while nobody cares (yet).

Access to mainpulate and blink GPIOs is maintained.

Change-Id: Id80a7e2f815a58750623c133bb30e5ed84a6e2ed
Signed-off-by: Keith Hui <buurin@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81924
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>

src/southbridge/intel/bd82x6x/acpi/pch.asl

@@ -54,15 +54,6 @@ Scope(\)
 	OperationRegion(GPIO, SystemIO, DEFAULT_GPIOBASE, 0x6c)
 	Field(GPIO, ByteAcc, NoLock, Preserve)
 	{
-		GU00, 8,	// GPIO Use Select
-		GU01, 8,
-		GU02, 8,
-		GU03, 8,
-		Offset(0x04),	// GPIO IO Select
-		GIO0, 8,
-		GIO1, 8,
-		GIO2, 8,
-		GIO3, 8,
 		Offset(0x0c),	// GPIO Level
 		GP00, 1,
 		GP01, 1,
@@ -134,16 +125,6 @@ Scope(\)
 		GIV1, 8,
 		GIV2, 8,
 		GIV3, 8,
-		Offset(0x30),	// GPIO Use Select 2
-		GU04, 8,
-		GU05, 8,
-		GU06, 8,
-		GU07, 8,
-		Offset(0x34),	// GPIO IO Select 2
-		GIO4, 8,
-		GIO5, 8,
-		GIO6, 8,
-		GIO7, 8,
 		Offset(0x38),	// GPIO Level 2
 		GP32, 1,
 		GP33, 1,
@@ -177,12 +158,6 @@ Scope(\)
 		GP61, 1,
 		GP62, 1,
 		GP63, 1,
-		Offset(0x40),	// GPIO Use Select 3
-		GU08, 8,
-		GU09, 4,
-		Offset(0x44),	// GPIO IO Select 3
-		GIO8, 8,
-		GIO9, 4,
 		Offset(0x48),	// GPIO Level 3
 		GP64, 1,
 		GP65, 1,