zynqmp: caches: Enable dcache for zynqmp

Define the mmu table till 2MB granularity
enable dcaches for zynqmp.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/include/configs/xilinx_zynqmp.h b/include/configs/xilinx_zynqmp.h
index 511ecca..74942f1 100644
--- a/include/configs/xilinx_zynqmp.h
+++ b/include/configs/xilinx_zynqmp.h
@@ -36,7 +36,7 @@
 #define CPU_RELEASE_ADDR	0xFFFFFF0
 
 /* Cache Definitions */
-#define CONFIG_SYS_DCACHE_OFF
+#define CONFIG_SYS_CACHELINE_SIZE	64
 
 #define CONFIG_IDENT_STRING		" Xilinx ZynqMP"