[MIPS] Less noise on multithreading exceptions.

Make the MT handler silent and output the MT exception type at debug
priority.

Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index 5254a22..b563811 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -365,7 +365,7 @@
 	BUILD_HANDLER mdmx mdmx sti silent		/* #22 */
 	BUILD_HANDLER watch watch sti verbose		/* #23 */
 	BUILD_HANDLER mcheck mcheck cli verbose		/* #24 */
-	BUILD_HANDLER mt mt sti verbose			/* #25 */
+	BUILD_HANDLER mt mt sti silent			/* #25 */
 	BUILD_HANDLER dsp dsp sti silent		/* #26 */
 	BUILD_HANDLER reserved reserved sti verbose	/* others */