ACPICA: Remove obsolete debug levels (WARN and ERROR)

Removed ACPI_DB_WARN and ACPI_DB_ERROR. These debug levels were
made obsolete by the ACPI_WARNING and ACPI_ERROR/ACPI_EXCEPTION
interfaces.  Also added ACPI_DB_EVENTS to correspond with the
existing ACPI_LV_EVENTS.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c
index 6df564f..abf36b4 100644
--- a/drivers/acpi/debug.c
+++ b/drivers/acpi/debug.c
@@ -47,8 +47,6 @@
 };
 
 static const struct acpi_dlevel acpi_debug_levels[] = {
-	ACPI_DEBUG_INIT(ACPI_LV_ERROR),
-	ACPI_DEBUG_INIT(ACPI_LV_WARN),
 	ACPI_DEBUG_INIT(ACPI_LV_INIT),
 	ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT),
 	ACPI_DEBUG_INIT(ACPI_LV_INFO),
diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c
index 38b55e3..09e9684 100644
--- a/drivers/acpi/executer/exstore.c
+++ b/drivers/acpi/executer/exstore.c
@@ -403,7 +403,7 @@
 
 		ACPI_ERROR((AE_INFO, "Unknown Reference opcode %X",
 			    ref_desc->reference.opcode));
-		ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_ERROR);
+		ACPI_DUMP_ENTRY(ref_desc, ACPI_LV_INFO);
 
 		status = AE_AML_INTERNAL;
 		break;
diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c
index 8399276..a9a80bf 100644
--- a/drivers/acpi/namespace/nssearch.c
+++ b/drivers/acpi/namespace/nssearch.c
@@ -331,7 +331,7 @@
 				      "Found bad character(s) in name, repaired: [%4.4s]\n",
 				      ACPI_CAST_PTR(char, &target_name)));
 		} else {
-			ACPI_DEBUG_PRINT((ACPI_DB_WARN,
+			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 					  "Found bad character(s) in name, repaired: [%4.4s]\n",
 					  ACPI_CAST_PTR(char, &target_name)));
 		}