ARM: remove CONFIG_ARM1136 defines

CONFIG_CPU_ARM1136 was introduced into Kconfig by commit 2e07c249a67e
(kconfig: arm: introduce symbol for ARM CPUs).

This commit removes all the defines of CONFIG_ARM1136 and replaces
the only reference in arch/arm/lib/cache.c with CONFIG_CPU_ARM1136.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/include/configs/imx31_litekit.h b/include/configs/imx31_litekit.h
index 8428d84..0f22032 100644
--- a/include/configs/imx31_litekit.h
+++ b/include/configs/imx31_litekit.h
@@ -15,8 +15,7 @@
 #include <asm/arch/imx-regs.h>
 
  /* High Level Configuration Options */
-#define CONFIG_ARM1136		1    /* This is an arm1136 CPU core */
-#define CONFIG_MX31		1    /* in a mx31 */
+#define CONFIG_MX31		1    /* This is a mx31 */
 #define CONFIG_MX31_CLK32	32000
 
 #define CONFIG_DISPLAY_CPUINFO