[PATCH] acpi: method: update _GCP test according to ACPI 6.1

[Alex Hung]

ACPI 6.1 adds a new return value Bit [4]:
1 = _GWS returns correct values for wakes from S4/S5 caused by timer.
0 = not supported

Signed-off-by: Alex Hung <alex.hung at canonical.com>
---
 src/acpi/method/method.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/acpi/method/method.c b/src/acpi/method/method.c
index 38e9631..d219961 100644
--- a/src/acpi/method/method.c
+++ b/src/acpi/method/method.c
@@ -4656,11 +4656,11 @@ static void method_test_GCP_return(
 	if (method_check_type(fw, name, buf, ACPI_TYPE_INTEGER) != FWTS_OK)
 		return;
 
-	if (obj->Integer.Value & ~0xf)
+	if (obj->Integer.Value & ~0x1f)
 		fwts_failed(fw, LOG_LEVEL_MEDIUM,
 			"Method_GCPReturn",
-			"%s returned %" PRId64 ", should be between 0 and 15, "
-			"one or more of the reserved bits 4..31 seem "
+			"%s returned %" PRId64 ", should be between 0 and 31, "
+			"one or more of the reserved bits 5..31 seem "
 			"to be set.",
 			name, (uint64_t)obj->Integer.Value);
 	else
-- 
2.7.4