sc7180 platform support

Adding support for QTI CHIP SC7180 on ATF

Change-Id: I0d82d3a378036003fbd0bc4784f61464bb76ea82
Signed-off-by: Saurabh Gorecha <sgorecha@codeaurora.org>
Co-authored-by: Maulik Shah <mkshah@codeaurora.org>
diff --git a/docs/plat/index.rst b/docs/plat/index.rst
index 7969003..553d8b5 100644
--- a/docs/plat/index.rst
+++ b/docs/plat/index.rst
@@ -27,6 +27,7 @@
    poplar
    qemu
    qemu-sbsa
+   qti
    rpi3
    rpi4
    rcar-gen3