DynamicTablesPkg: AcpiSsdtPcieLibArm: Create support library

Add support library to allow for customization of _OSC and slot info.
The functions in the library are unchanged,
with the exception of adding PciInfo pointer to the APIs.

Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>

DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtPcieLibArm/SsdtPcieGenerator.h

@@ -36,29 +36,8 @@
 // _SB scope of the AML namespace.
 #define SB_SCOPE  "\\_SB_"
 
-/** C array containing the compiled AML template.
-    This symbol is defined in the auto generated C file
-    containing the AML bytecode array.
-*/
-extern CHAR8  ssdtpcieosctemplate_aml_code[];
-
 #pragma pack(1)
 
-/** Structure used to map integer to an index.
-*/
-typedef struct MappingTable {
-  /// Mapping table.
-  /// Contains the Index <-> integer mapping
-  UINT32    *Table;
-
-  /// Last used index of the Table.
-  /// Bound by MaxIndex.
-  UINT32    LastIndex;
-
-  /// Number of entries in the Table.
-  UINT32    MaxIndex;
-} MAPPING_TABLE;
-
 /** A structure holding the Pcie generator and additional private data.
 */
 typedef struct AcpiPcieGenerator {