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/arch/arm/lib/cache.c b/arch/arm/lib/cache.c
index d0863da..f1c0792 100644
--- a/arch/arm/lib/cache.c
+++ b/arch/arm/lib/cache.c
@@ -11,7 +11,7 @@
 
 __weak void flush_cache(unsigned long start, unsigned long size)
 {
-#if defined(CONFIG_ARM1136)
+#if defined(CONFIG_CPU_ARM1136)
 
 #if !defined(CONFIG_SYS_ICACHE_OFF)
 	asm("mcr p15, 0, r1, c7, c5, 0"); /* invalidate I cache */
@@ -21,7 +21,7 @@
 	asm("mcr p15, 0, r1, c7, c14, 0"); /* Clean+invalidate D cache */
 #endif
 
-#endif /* CONFIG_ARM1136 */
+#endif /* CONFIG_CPU_ARM1136 */
 
 #ifdef CONFIG_CPU_ARM926EJS
 	/* test and clean, page 2-23 of arm926ejs manual */