meta-ampere: fix compilation error with latest Yocto

Make the following changes to fix compilation errors:
1. Add honister to LAYERSERIES_COMPAT
2. Increase CONF_VERSION to 2.
3. Fix mistake on previous change on Yocto syntax update.

Tested:
1. Compile OpenBMC for Mt.Jade without error.

Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: I5ac3f568d776109955759fab78844b1d38a51af1
diff --git a/meta-ampere/meta-jade/recipes-phosphor/gpio/fault-monitor.bb b/meta-ampere/meta-jade/recipes-phosphor/gpio/fault-monitor.bb
index 4994183..49376ee 100644
--- a/meta-ampere/meta-jade/recipes-phosphor/gpio/fault-monitor.bb
+++ b/meta-ampere/meta-jade/recipes-phosphor/gpio/fault-monitor.bb
@@ -19,7 +19,7 @@
 
 OBMC_FAULT_MONITOR_INSTANCES = "s0_fault_alert s1_fault_alert"
 
-SYSTEMD_ENVIRONMENT_FILE:${PN} += "obmc/gpio/s0_fault_alert \
+SYSTEMD_ENVIRONMENT_FILE_${PN} += "obmc/gpio/s0_fault_alert \
                                    obmc/gpio/s1_fault_alert \
                                   "
 
@@ -29,5 +29,5 @@
 FMT = "../${TMPL}:${TGT}.requires/${INSTFMT}"
 
 SYSTEMD_SERVICE:${PN} += "ampere_fault_led.service"
-SYSTEMD_LINK:${PN} += "${@compose_list(d, 'FMT', 'OBMC_FAULT_MONITOR_INSTANCES')}"
+SYSTEMD_LINK_${PN} += "${@compose_list(d, 'FMT', 'OBMC_FAULT_MONITOR_INSTANCES')}"