arm: octeontx2: Add support for OcteonTX2 SoC platforms

This patch adds support for all OcteonTX2 96xx/95xx
boards from Marvell.
For 96xx boards, use octeontx_96xx_defconfig and
for 95xx boards, use octeontx_95xx_defconfig.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 87b4198..28b523b 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -81,6 +81,7 @@
 machine-$(CONFIG_ARCH_TEGRA)		+= tegra
 machine-$(CONFIG_ARCH_U8500)		+= u8500
 machine-$(CONFIG_ARCH_OCTEONTX)		+= octeontx
+machine-$(CONFIG_ARCH_OCTEONTX2)	+= octeontx2
 machine-$(CONFIG_ARCH_UNIPHIER)		+= uniphier
 machine-$(CONFIG_ARCH_VERSAL)		+= versal
 machine-$(CONFIG_ARCH_ZYNQ)		+= zynq