wmi: Use bool function return values of true/false not 1/0

Use the normal return values for bool functions

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 26a0bd8..aac4757 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -239,10 +239,10 @@
 		if (memcmp(block->guid, guid_input, 16) == 0) {
 			if (out)
 				*out = wblock;
-			return 1;
+			return true;
 		}
 	}
-	return 0;
+	return false;
 }
 
 static acpi_status wmi_method_enable(struct wmi_block *wblock, int enable)