time: Correct the *settime* parameters

Both settimeofday() and clock_settime() promise with a 'const'
attribute not to alter the arguments passed in. This patch adds the
missing 'const' attribute into the various kernel functions
implementing these calls.

Signed-off-by: Richard Cochran <richard.cochran@omicron.at>
Acked-by: John Stultz <johnstul@us.ibm.com>
LKML-Reference: <20110201134417.545698637@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 93bd2eb..21b7ca20 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -192,7 +192,7 @@
 }
 
 static inline int common_clock_set(const clockid_t which_clock,
-				   struct timespec *tp)
+				   const struct timespec *tp)
 {
 	return do_sys_settimeofday(tp, NULL);
 }
@@ -928,7 +928,7 @@
 }
 
 /* Not available / possible... functions */
-int do_posix_clock_nosettime(const clockid_t clockid, struct timespec *tp)
+int do_posix_clock_nosettime(const clockid_t clockid, const struct timespec *tp)
 {
 	return -EINVAL;
 }