sb/intel/bd82x6x/pch.asl: Break out GPIO blink field

Break out the individual bits of GPIO blink register as was done
for GPIO level register. An upcoming patch will use this.

Change-Id: I6f4749f60a9d569deba4b31f09f07a1321dabf4a
Signed-off-by: Keith Hui <buurin@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81922
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>

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

@@ -97,10 +97,38 @@ Scope(\)
 		GP30, 1,
 		GP31, 1,
 		Offset(0x18),	// GPIO Blink
-		GB00, 8,
+		GB00, 1,
-		GB01, 8,
+		GB01, 1,
-		GB02, 8,
+		GB02, 1,
-		GB03, 8,
+		GB03, 1,
+		GB04, 1,
+		GB05, 1,
+		GB06, 1,
+		GB07, 1,
+		GB08, 1,
+		GB09, 1,
+		GB10, 1,
+		GB11, 1,
+		GB12, 1,
+		GB13, 1,
+		GB14, 1,
+		GB15, 1,
+		GB16, 1,
+		GB17, 1,
+		GB18, 1,
+		GB19, 1,
+		GB20, 1,
+		GB21, 1,
+		GB22, 1,
+		GB23, 1,
+		GB24, 1,
+		GB25, 1,
+		GB26, 1,
+		GB27, 1,
+		GB28, 1,
+		GB29, 1,
+		GB30, 1,
+		GB31, 1,
 		Offset(0x2c),	// GPIO Invert
 		GIV0, 8,
 		GIV1, 8,