ArmVirtPkg: ArmPlatformDeviceInfoLib - add dev parser

Add functionality to parse the FDT for the MMIO base address
and range using the compatibility string provided for a device
and populate the PLATFORM_DEVICE_INFO structure.

This common parsing functionality can then be used to extract
information from devices that follow the generic device register
representation scheme.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>