feat(systemd-pcrphase): add tpm2.target and systemd-tpm2-generator

systemd/systemd@4e1f0037 added a new `tpm2.target`,
which is now used by `systemd-pcrphase-initrd.service`, and
`systemd-tpm2-generator`, which adds a `Wants=` dependency from `sysinit.target`
to `tpm2.target` when it detects that the firmware discovered a TPM2 device but
the kernel didn't.

modules.d/01systemd-pcrphase/module-setup.sh

@@ -28,6 +28,8 @@ install() {
 
     inst_multiple -o \
         "$systemdutildir"/systemd-pcrphase \
+        "$systemdutildir"/system-generators/systemd-tpm2-generator \
+        "$systemdsystemunitdir/tpm2.target" \
         "$systemdsystemunitdir"/systemd-pcrphase-initrd.service \
         "$systemdsystemunitdir/systemd-pcrphase-initrd.service.d/*.conf" \
         "$systemdsystemunitdir"/initrd.target.wants/systemd-pcrphase-initrd.service