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>

include/acpi/acglobal.h

@@ -80,6 +80,10 @@ extern u32 acpi_dbg_layer;
 
 extern u32 acpi_gbl_nesting_level;
 
+/* Event counters */
+
+ACPI_EXTERN u32 acpi_gpe_count;
+
 /* Support for dynamic control method tracing mechanism */
 
 ACPI_EXTERN u32 acpi_gbl_original_dbg_level;