OvmfPkg: rework TPM configuration

Rename TPM_ENABLE to TPM2_ENABLE so naming is in line with the
ArmVirtPkg config option name.

Add separate TPM1_ENABLE option for TPM 1.2 support.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>

OvmfPkg/OvmfTpmComponentsDxe.dsc.inc

@@ -2,7 +2,7 @@
 #    SPDX-License-Identifier: BSD-2-Clause-Patent
 ##
 
-!if $(TPM_ENABLE) == TRUE
+!if $(TPM2_ENABLE) == TRUE
   SecurityPkg/Tcg/Tcg2Dxe/Tcg2Dxe.inf {
     <LibraryClasses>
       Tpm2DeviceLib|SecurityPkg/Library/Tpm2DeviceLibRouter/Tpm2DeviceLibRouterDxe.inf
@@ -15,10 +15,12 @@
       NULL|SecurityPkg/Library/HashInstanceLibSm3/HashInstanceLibSm3.inf
   }
   SecurityPkg/Tcg/Tcg2Config/Tcg2ConfigDxe.inf
+!if $(TPM1_ENABLE) == TRUE
   SecurityPkg/Tcg/TcgDxe/TcgDxe.inf {
     <LibraryClasses>
       Tpm12DeviceLib|SecurityPkg/Library/Tpm12DeviceLibDTpm/Tpm12DeviceLibDTpm.inf
   }
+!endif
   SecurityPkg/Tcg/Tcg2PlatformDxe/Tcg2PlatformDxe.inf {
     <LibraryClasses>
       TpmPlatformHierarchyLib|SecurityPkg/Library/PeiDxeTpmPlatformHierarchyLib/PeiDxeTpmPlatformHierarchyLib.inf