fix: 设备安全等级，新增独立的gid

Signed-off-by: NZen知仁 <xuzhiren@huawei.com>

services/etc/group

@@ -58,6 +58,7 @@ nfc_host:x:3042:
 a2dp_host:x:3043:
 hdf_devmgr:x:3044:
 connected_tag_host:x:3045:
+dslm:x:3046:
 dms:x:5522:
 sensor:x:6688:
 misc:x:9998:

services/etc/passwd

@@ -59,6 +59,7 @@ nfc_host:x:3042:3042:::/bin/false
 a2dp_host:x:3043:3043:::/bin/false
 hdf_devmgr:x:3044:3044:::/bin/false
 connected_tag_host:x:3045:3045:::/bin/false
+dslm:x:3046:3046:::/bin/false
 dms:x:5522:5522:::/bin/false
 sensor:x:6688:6688:::/bin/false
 misc:x:9998:9998:::/bin/false