phosphor-ipmi-host: support multi-host settings depends

The phosphor-ipmi-host.service has hard-coded dependencies on various
dbus objects, typically exposed by phosphor-settingsd, which provide
per-host data.  When built on a multi-host system, the hard-coded
dependency on 'host0' instances is incorrect.

Add support in the recipe for injecting dependencies into the service,
via the `service.d` override directory, during the bitbake 'do_install'
step so that the OBMC_HOST_INSTANCES can be evaluated and dependencies
added per-host.

Also add a variable, IPMI_HOST_NEEDED_SERVICES, which allows bbappend
on an as-needed basis to insert or remove these settings dependencies.

Fixes openbmc/openbmc#2059.

Tested: Built on Bletchley and verified the service file has
dependencies on host1-host6 instances instead of host0.  Booted in QEMU
and confirmed appropriate service dependencies are functional. Built on
Witherspoon and confirmed the 'host0' dependencies are now added to the
`phosphor-ipmi-host.service.d/10-override.conf` file.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I83d873d33fd49b45c08d657c67fc71d473c25208

0 files changed, 0 insertions, 0 deletions