ACPICA: Add acpi_gpe_count global to track the number of GPE events

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index 8809306..a524e75 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -720,6 +720,7 @@
 
 	/* GPE support */
 
+	acpi_gpe_count = 0;
 	acpi_gbl_gpe_xrupt_list_head = NULL;
 	acpi_gbl_gpe_fadt_blocks[0] = NULL;
 	acpi_gbl_gpe_fadt_blocks[1] = NULL;
@@ -779,3 +780,4 @@
 
 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
+ACPI_EXPORT_SYMBOL(acpi_gpe_count)