meta-quanta: gsj: add overrides to phosphor-hwmon config

Add _append_gsj to the environment files variable in gsj's
phosphor-hwmon bbappend in order to avoid affecting platforms.

Tested: Built for gsj and conf files were installed

(From meta-quanta rev: 79cabcb4faac7fe6a2f927ea5b9158ac432d8b58)

Change-Id: I49ea81f98a4aadbbec47aa251cf4ffe4a44b243f
Signed-off-by: Benjamin Fair <benjaminfair@google.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-quanta/meta-gsj/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend b/meta-quanta/meta-gsj/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
index 0313b04..e2d7530 100644
--- a/meta-quanta/meta-gsj/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
+++ b/meta-quanta/meta-gsj/recipes-phosphor/sensors/phosphor-hwmon_%.bbappend
@@ -15,9 +15,9 @@
 ITEMS += "${@compose_list(d, 'ITEMSFMT', 'NAMES')}"
 
 ENVS = "obmc/hwmon/{0}"
-SYSTEMD_ENVIRONMENT_FILE_${PN} += "${@compose_list(d, 'ENVS', 'ITEMS')}"
+SYSTEMD_ENVIRONMENT_FILE_${PN}_append_gsj = " ${@compose_list(d, 'ENVS', 'ITEMS')}"
 
 # Fan sensors
 FITEMS = "pwm-fan-controller@103000.conf"
 FENVS = "obmc/hwmon/ahb/apb/{0}"
-SYSTEMD_ENVIRONMENT_FILE_${PN} += "${@compose_list(d, 'FENVS', 'FITEMS')}"
+SYSTEMD_ENVIRONMENT_FILE_${PN}_append_gsj = " ${@compose_list(d, 'FENVS', 'FITEMS')}"