armv7: add cacheline sizes where missing

Some armv7 targets are missing a cache line size declaration.
In preparation for "arm: cache: Implement cache range check for v7"
patch, add these declarations with the appropriate value for
the target's SoC or CPU.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/am3517_evm.h b/include/configs/am3517_evm.h
index 23457d6..4547d7f 100644
--- a/include/configs/am3517_evm.h
+++ b/include/configs/am3517_evm.h
@@ -13,6 +13,8 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#define CONFIG_SYS_CACHELINE_SIZE	64
+
 /*
  * High Level Configuration Options
  */