arm: Add support for STMicroelectronics STiH410 soc

The STiH410 is an advanced multi-HD AVC processor with 3D
graphics acceleration and 1.5-GHz ARM Cortex-A9 SMP CPU
part of the STiH407 family.

It has wide connectivity including USB 3.0, PCI-e, SATA
and gigabit ethernet.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
diff --git a/arch/arm/mach-sti/Kconfig b/arch/arm/mach-sti/Kconfig
new file mode 100644
index 0000000..87c04b2
--- /dev/null
+++ b/arch/arm/mach-sti/Kconfig
@@ -0,0 +1,6 @@
+if ARCH_STI
+
+config SYS_SOC
+	default "stih410"
+
+endif