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 <[e-mail]>
Signed-off-by: Darren Hart <[e-mail]>

drivers/platform/x86/wmi.c

···
 		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)