Reapply "We should check service enabled instead exists (#24754)" (#24794) (#25037)

#### Why I did it
If teamd feature is disabled,
```
sudo config feature state teamd disabled
```

swss service should not wait on team container at all. Currently there is a process
```
python3 /usr/bin/docker-wait-any -s swss -d syncd teamd
```

However, a thread inside /usr/bin/docker-wait-any is actually crashed, and the behavior is same as ignoring teamd. It still keep the whole system working.

The root fix should check service enabled instead exists, so it will not wait-any on teamd at all. After this PR,

```
python3 /usr/bin/docker-wait-any -s swss -d syncd
```

##### Work item tracking
- Microsoft ADO **(number only)**:
- Fixing #24730

Signed-off-by: dprital <[email protected]>

Author: qiluo-msft

files/scripts/swss.sh

@@ -584,15 +584,12 @@ function check_ports_present()
     return 1
 }
 
-function check_service_exists()
+function check_service_enabled()
 {
-    systemctl list-units --full -all 2>/dev/null | grep -Fq $1
-    if [[ $? -eq 0 ]]; then
+    if systemctl is-enabled "$1" >/dev/null 2>&1; then
         echo true
-        return
     else
         echo false
-        return
     fi
 }
 
@@ -601,7 +598,7 @@ function check_service_exists()
 DEPENDENT=""
 MULTI_INST_DEPENDENT=""
 
-if [[ $(check_service_exists radv) == "true" ]]; then
+if [[ $(check_service_enabled radv) == "true" ]]; then
     DEPENDENT="$DEPENDENT radv"
 fi
 
@@ -622,7 +619,7 @@ check_add_bgp_dependency
 check_ports_present
 PORTS_PRESENT=$?
 
-if [[ $PORTS_PRESENT == 0 ]] && [[ $(check_service_exists teamd) == "true" ]]; then
+if [[ $PORTS_PRESENT == 0 ]] && [[ $(check_service_enabled "teamd${DEV:+@$DEV}") == "true" ]]; then
     MULTI_INST_DEPENDENT="teamd"
 fi