Add Camera, Display, PCIe CESTA nodes for tuna. Also disable
them in RUMI till validations are completed.
Also rename the syscon device to avoid naming conflicts.
Change-Id: Ia8238c95b18a9992efe34e34d062e3835b501dcf
Signed-off-by: Sneh Mankad <quic_smankad@quicinc.com>