MAINTAINERS: fix W: address for xtensa

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 354a18c..dac21d5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -290,7 +290,7 @@
 
 Xtensa
 M: Max Filippov <jcmvbkbc@gmail.com>
-W: http://wiki.osll.spb.ru/doku.php?id=etc:users:jcmvbkbc:qemu-target-xtensa
+W: http://wiki.osll.ru/doku.php?id=etc:users:jcmvbkbc:qemu-target-xtensa
 S: Maintained
 F: target/xtensa/
 F: hw/xtensa/