meta-phosphor: make discovery bbclass use override syntax
In the spirit of consistency with the new upstream override
syntax, change phosphor-discovery-service.bbclass to use it
and make tree-wide changes as appropriate.
After the change checked on Witherspoon on QEMU:
```
root@witherspoon:/etc/avahi/services# ls
obmc_console.service obmc_redfish.service obmc_rest.service
```
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ib1fe3cce57a0130378af789abd83b457e0c3a318
diff --git a/meta-phosphor/recipes-phosphor/console/obmc-console_git.bb b/meta-phosphor/recipes-phosphor/console/obmc-console_git.bb
index 70d2fe9..62efcdb 100644
--- a/meta-phosphor/recipes-phosphor/console/obmc-console_git.bb
+++ b/meta-phosphor/recipes-phosphor/console/obmc-console_git.bb
@@ -29,7 +29,7 @@
SRCREV = "cabd9db06da91ecf2198c1baaf20360d1424c2f3"
PV = "1.0+git${SRCPV}"
-REGISTERED_SERVICES_${PN} += "obmc_console:tcp:2200:"
+REGISTERED_SERVICES:${PN} += "obmc_console:tcp:2200:"
SYSTEMD_SERVICE:${PN} += "obmc-console-ssh@.service \
obmc-console-ssh.socket \