Set the 32-bit ARM HZ value to a default value of 100 if the kernel

was not configured with CONFIG_IKCONFIG.  Without the patch, the
initial system banner and the "sys" command show "UPTIME: (cannot
calculate: unknown HZ value)", the "ps -t" option shows "RUN TIME:
(cannot calculate: unknown HZ value)", and the "timer -r" option
kills the crash session with a floating point exception.
(hukeping@huawei.com)

arm.c

@@ -322,6 +322,9 @@ arm_init(int when)
 				   "pr_pid");
 		MEMBER_OFFSET_INIT(elf_prstatus_pr_reg, "elf_prstatus",
 				   "pr_reg");
+
+		if (!machdep->hz)
+			machdep->hz = 100;
 		break;
 
 	case POST_VM: