DynamicTablesPkg: Arm PCI MCFG Table Generator

DynamicTablesPkg: Arm PCI MCFG Table Generator

The MCFG generator uses the configuration manager protocol
to obtain the PCI Configuration space information from the
platform configuration manager and builds the MCFG table.

This table data is then used by the Table Manager to install
the MCFG table.

The Table Manager then invokes the generator interface to free
any resources allocated by the MCFG table generator.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Sami Mujawar <sami.mujawar@arm.com>
Reviewed-by: Alexei Fedorov <alexei.fedorov@arm.com>