arm64: dts: qcom: Add apps_iommu vfe child node

arm64: dts: qcom: Add apps_iommu vfe child node

BugLink: http://bugs.launchpad.net/bugs/1763040
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
(cherry picked from commit ccda5640cd58afa5841c85d1ffcb74c05dda984c
http://git.linaro.org/landing-teams/working/qualcomm/kernel.git release/qcomlt-4.14)
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>