omap3: Include array definition only when it is used

The array of strings corresponding to cpu revision is
used only when CONFIG_DISPLAY_CPUINFO is selected - in
the function print_cpuinfo().

Enclose definition of this array in #ifdef...#endif for
the same.
Signed-off-by: NSanjeev Premi <premi@ti.com>
Signed-off-by: NSandeep Paulraj <s-paulraj@ti.com>

arch/arm/cpu/armv7/omap3/sys_info.c

@@ -33,6 +33,8 @@
 
 extern omap3_sysinfo sysinfo;
 static struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
+
+#ifdef CONFIG_DISPLAY_CPUINFO
 static char *rev_s[CPU_3XX_MAX_REV] = {
 				"1.0",
 				"2.0",
@@ -42,6 +44,7 @@ static char *rev_s[CPU_3XX_MAX_REV] = {
 				"UNKNOWN",
 				"UNKNOWN",
 				"3.1.2"};
+#endif /* CONFIG_DISPLAY_CPUINFO */
 
 /*****************************************************************
  * dieid_num_r(void) - read and set die ID