3rdparty: update arm-trusted-firmware submodule

Updated to arm-trusted-firmware TOT:
236c27d2 (Merge pull request #805 from Xilinx/zynqmp/addr_space_size)
183 commits between Sep 20, 2016 and January 10, 2017

- Also add associated change to src/soc/rockship/rk3399 Makefile.inc
that is required to build the M0 Firmware.

Change-Id: I49695f3287a742cd1fb603b890d124f60788f88f
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/18024
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2 files changed