arm/dt: apq8074: Add device tree for apq8074

Add device tree file for apq8074 with information of
memory reserved for other images not accessible by the
kernel and the size and address of the qseecom node.

Change-Id: Idca485ef3325e0f968e66d9a5304d0eff8b80403
Signed-off-by: Neeti Desai <neetid@codeaurora.org>
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>