soc: qcom: Add Guest VM PIL loader

Add loader to load Guest VM images, based on the input from device tree.
Based on the name of the guest vm as mentioned in the device tree, this
loader loads all the images belonging to the guest vm into the memory
specified in the devicetree file. Once the loading is complete, it makes
necessary calls to the resource manager driver to start the guest VM.

Change-Id: I8b276236dab5e5efa0d08bcd4a7fe2d1c7f7b4e6
Acked-by: Tom Kuo <tkuo@qti.qualcomm.com>
Signed-off-by: Prakruthi Deepak Heragu <pheragu@codeaurora.org>
Signed-off-by: Elliot Berman <eberman@codeaurora.org>