armv8: ls2080: Add config for endianess of CCSR GUR

The GUR (DCFG) registers in CCSR space are in little endian format.
Define a config CONFIG_SYS_FSL_CCSR_GUR_LE in
arch/arm/include/asm/arch-fsl-layerscape/config.h

Signed-off-by: Aneesh Bansal <aneesh.bansal@nxp.com>
Signed-off-by: Saksham Jain <saksham.jain@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

arch/arm/include/asm/arch-fsl-layerscape/config.h

@@ -82,6 +82,9 @@
 /* Secure Boot */
 #define CONFIG_ESBC_HDR_LS
 
+/* DCFG - GUR */
+#define CONFIG_SYS_FSL_CCSR_GUR_LE
+
 /* Cache Coherent Interconnect */
 #define CCI_MN_BASE			0x04000000
 #define CCI_MN_RNF_NODEID_LIST		0x180