This change allows the tpg hw register configurations to be directly
programmed from the tpg xml file. The regsettings array can be configured
with the right configurations for the required mode, if regsettings are
not provided in regsettings array. The settings are derived from the
stream configurations and global configurations.
CRs-Fixed: 3289930.
Change-Id: If44678475986efc0f26c334f5db4f9c59cd6873b
Signed-off-by: Shivi Mangal <quic_smangal@quicinc.com>