ntp: Make time_esterror and time_maxerror static

Make time_esterror and time_maxerror static as no one uses them
outside of ntp.c
    
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Cc: richard@rsk.demon.co.uk
LKML-Reference: <1264719761.3437.47.camel@localhost.localdomain>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 4800f93..74b1b37 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -58,10 +58,10 @@
 static long			time_constant = 2;
 
 /* maximum error (usecs):						*/
-long				time_maxerror = NTP_PHASE_LIMIT;
+static long			time_maxerror = NTP_PHASE_LIMIT;
 
 /* estimated error (usecs):						*/
-long				time_esterror = NTP_PHASE_LIMIT;
+static long			time_esterror = NTP_PHASE_LIMIT;
 
 /* frequency offset (scaled nsecs/secs):				*/
 static s64			time_freq;