ACPICA: New: AcpiInstallMethod - install a single control method

This interface enables the override or creation of a single
control method. Useful to repair a bug or install a missing method.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h
index ff851c5..067f967 100644
--- a/drivers/acpi/acpica/amlcode.h
+++ b/drivers/acpi/acpica/amlcode.h
@@ -483,7 +483,7 @@
 
 #define AML_METHOD_ARG_COUNT        0x07
 #define AML_METHOD_SERIALIZED       0x08
-#define AML_METHOD_SYNCH_LEVEL      0xF0
+#define AML_METHOD_SYNC_LEVEL       0xF0
 
 /* METHOD_FLAGS_ARG_COUNT is not used internally, define additional flags */