OvmfPkg: move PciEncoding into AcpiPlatformLib

Bhyve supports providing ACPI tables by FwCfg. Therefore,
InstallQemuFwCfgTables should be moved to AcpiPlatformLib to reuse the
code. As first step, move PciEncoding into AcpiPlatformLib.

Signed-off-by: Corvin Köhne <corvink@FreeBSD.org>
Acked-by: Peter Grehan <grehan@freebsd.org>

OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf

@@ -26,7 +26,6 @@
   BootScript.c
   CloudHvAcpi.c
   EntryPoint.c
-  PciDecoding.c
   QemuFwCfgAcpi.c
 
 [Packages]
@@ -35,15 +34,13 @@
   OvmfPkg/OvmfPkg.dec
 
 [LibraryClasses]
+  AcpiPlatformLib
   BaseLib
   BaseMemoryLib
-  DebugLib
   MemoryAllocationLib
   OrderedCollectionLib
-  PcdLib
   QemuFwCfgLib
   QemuFwCfgS3Lib
-  UefiBootServicesTableLib
   UefiDriverEntryPoint
   HobLib
   TpmMeasurementLib