softlockup: move 'one' to the softlockup section in sysctl.c

CONFIG_SOFTLOCKUP=y || CONFIG_DETECT_HUNG_TASKS=y is now the only user
of the 'one' constant in kernel/sysctl.c. Move it to the softlockup
block of constants.

This fixes a GCC warning.
Signed-off-by: NIngo Molnar <mingo@elte.hu>

kernel/sysctl.c

@@ -90,6 +90,9 @@ extern int rcutorture_runnable;
 #endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
 
 /* Constants used for minimum and  maximum */
+#if defined(CONFIG_DETECT_HUNG_TASK) || defined(CONFIG_DETECT_SOFTLOCKUP) || defined(CONFIG_HIGHMEM)
+static int one = 1;
+#endif
 #ifdef CONFIG_DETECT_SOFTLOCKUP
 static int sixty = 60;
 static int neg_one = -1;
@@ -100,7 +103,6 @@ static int two = 2;
 #endif
 
 static int zero;
-static int one = 1;
 static unsigned long one_ul = 1;
 static int one_hundred = 100;