influxdb: Add missing group to static id

The influxdb group is used by the influxdb recipe and created by default
by the useradd command.

Also, align static passwd file to the USERADD_PARAM in the influxdb
recipe and add the missing newline at end of file.

Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/files/static-group-meta-oe

@@ -5,4 +5,5 @@ mysql:x:603:
 postgres:x:28:
 zabbix:x:605:
 mail:x:606:
+influxdb:x:622:
 nogroup:x:65534:

meta-oe/files/static-passwd-meta-oe

@@ -7,5 +7,5 @@ zabbix:x:605:605::/:/bin/nologin
 cyrus:x:606:nogroup::/:/bin/nologin
 pcp:x:620:nogroup::/:/bin/nologin
 pcpqa:x:621:nogroup::/:/bin/nologin
-influxdb:x:622:nogroup::/:/bin/nologin
-mongodb:x:623:nogroup::/:/bin/nologin
+influxdb:x:622:influxdb::/var/lib/influxdb:/bin/nologin
+mongodb:x:623:nogroup::/:/bin/nologin