Add support to provide the DTC_FLAG for DTC
compilation from makefile and create folder for temporary/
intermediate DT build file creation.
This will help to build the DT available in hardware/nvidia.
Bug 3787936
Change-Id: I79ca3f2532fd317ff004bc7290185d4878028fff
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2773804
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>