soc: qcom: pil: Add property to change minidump ELF format

Add a new property, to dump minidump ELF in ELF32 format,
as some subsystems do not support the default format,
which is ELF64.

Change-Id: I87bc46097b4dfc0be44f0904823c5e88c476c86b
Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Mayank Grover <groverm@codeaurora.org>