Add av_session uid and gid

Signed-off-by: Ngaoxingye <gaoxingye@huawei.com>

services/etc/group

@@ -90,6 +90,7 @@ thermal:x:6669:
 sensor:x:6688:
 input:x:6696:
 msdp:x:6699:
+av_session:x:6700:
 misc:x:9998:
 app:x:10000:
 useriam:x:1088:

services/etc/passwd

@@ -88,6 +88,7 @@ thermal:x:6669:6669:::/bin/false
 sensor:x:6688:6688:::/bin/false
 input:x:6696:6696:::/bin/false
 msdp:x:6699:6699:::/bin/false
+av_session:x:6700:6700:::/bin/false
 misc:x:9998:9998:::/bin/false
 app:x:10000:10000:::/bin/false
 useriam:x:1088:1088:::/bin/false