armv8:fsl-layerscape: Add support for Chassis 3.2

NXP layerscape architecture Chassis 3.2 builds upon chassis3
architecture with changes like DDR Memory map change,
removal of IFC and support of upto 8 I2C controller.

Patch add README.lsch3_2 and the above changes under
macro CONFIG_NXP_LSCH3_2.

Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index 2d1946c..650ac94 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -180,6 +180,9 @@
 config FSL_LSCH3
 	bool
 
+config NXP_LSCH3_2
+	bool
+
 config FSL_MC_ENET
 	bool "Management Complex network"
 	depends on ARCH_LS2080A || ARCH_LS1088A