phosphor-ipmi-blobs-binarystore: Ship service file

`binarystore-migration.service` was installed in meson while didn't get
shipped in recipe.
This CL is to fix the `Files/directories were installed but not shipped
in any package` issue.
ref: https://github.com/openbmc/phosphor-ipmi-blobs-binarystore/commit/7f10780928ba5db439282f9306e255d07783f20e

Tested:
Before:
```
ERROR: phosphor-ipmi-blobs-binarystore-1.0+git-r1 do_package: QA Issue:
phosphor-ipmi-blobs-binarystore: Files/directories were installed but
not shipped in any package:
```
After:
Build passed.

Change-Id: I8e6f9740014c65fed01140f9949105237c4f8ad3
Signed-off-by: Michael Shen <gpgpgp@google.com>
diff --git a/meta-phosphor/recipes-phosphor/ipmi/phosphor-ipmi-blobs-binarystore_git.bb b/meta-phosphor/recipes-phosphor/ipmi/phosphor-ipmi-blobs-binarystore_git.bb
index 362e3cf..93631b0 100644
--- a/meta-phosphor/recipes-phosphor/ipmi/phosphor-ipmi-blobs-binarystore_git.bb
+++ b/meta-phosphor/recipes-phosphor/ipmi/phosphor-ipmi-blobs-binarystore_git.bb
@@ -18,7 +18,9 @@
 
 S = "${WORKDIR}/git"
 
-inherit meson pkgconfig
+inherit meson pkgconfig systemd
+
+SYSTEMD_SERVICE:${PN} += "${@bb.utils.contains('PACKAGECONFIG', 'blobtool', 'binarystore-migration.service', '', d)}"
 
 EXTRA_OEMESON:append = " -Dtests=disabled"