SpcrFeaturePkg: Updated SPCR table based on PCD values

Update the SPCR table based on PCD values, such as
base address, register bit width, access size and
address space id etc, along with OEM data.

Cc: Abner Chang <abner.chang@amd.com>
Cc: Sai Chaganty <rangasai.v.chaganty@intel.com>
Cc: Isaac Oram <isaac.w.oram@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Abdul Lateef Attar <AbdulLateef.Attar@amd.com>
Reviewed-by: Isaac Oram <isaac.w.oram@intel.com>