hangcheck-timer: Fix typo in comment

Fix the typo "alloted" -> "allotted" in comment.
Signed-off-by: NShile Zhang <shile.zhang@nokia.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/char/hangcheck-timer.c

@@ -32,7 +32,7 @@
  * timer and 180 seconds for the margin of error.  IOW, a timer is set
  * for 60 seconds.  When the timer fires, the callback checks the
  * actual duration that the timer waited.  If the duration exceeds the
- * alloted time and margin (here 60 + 180, or 240 seconds), the machine
+ * allotted time and margin (here 60 + 180, or 240 seconds), the machine
  * is restarted.  A healthy machine will have the duration match the
  * expected timeout very closely.
  */