thinkpad-acpi: add missing log levels

Add missing log levels in a standalone commit, to avoid dependencies in
future unrelated changes, just because they wanted to use one of the
missing log levels.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/platform/x86/thinkpad_acpi.c

@@ -172,15 +172,18 @@ enum {
 	TPACPI_RFK_UWB_SW_ID,
 };
 
-/* Debugging */
+/* printk headers */
 #define TPACPI_LOG TPACPI_FILE ": "
+#define TPACPI_EMERG	KERN_EMERG	TPACPI_LOG
 #define TPACPI_ALERT	KERN_ALERT	TPACPI_LOG
 #define TPACPI_CRIT	KERN_CRIT	TPACPI_LOG
 #define TPACPI_ERR	KERN_ERR	TPACPI_LOG
+#define TPACPI_WARN	KERN_WARNING	TPACPI_LOG
 #define TPACPI_NOTICE	KERN_NOTICE	TPACPI_LOG
 #define TPACPI_INFO	KERN_INFO	TPACPI_LOG
 #define TPACPI_DEBUG	KERN_DEBUG	TPACPI_LOG
 
+/* Debugging printk groups */
 #define TPACPI_DBG_ALL		0xffff
 #define TPACPI_DBG_INIT		0x0001
 #define TPACPI_DBG_EXIT		0x0002