DynamicTablesPkg: Arm DBG2 Table Generator

DynamicTablesPkg: Arm DBG2 Table Generator

The DBG2 generator uses the configuration manager protocol
to obtain the debug serial port information from the platform
configuration manager. It then updates a template DBG2 table
structure. This table data is used by the Table Manager to
install the DBG2 table.

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