ath11k_nss: nss_diag: check for opkg/apk

Signed-off-by: Sean Khan <datapronix@protonmail.com>

package/kernel/mac80211/files/nss_diag.sh

@@ -73,8 +73,21 @@ done
 
 echo -e "${reset}"
 echo -ne "${bold}${red}  NSS PKGS${reset}: ${white}"
-opkg list-installed | awk -v count=0 '
-  /kmod-qca-nss|^nss/ {
+
+if cmd=$(command -v apk) > /dev/null; then
+  flags="list -I"
+else
+  cmd=$(command -v opkg)
+  flags="list-installed"
+fi
+
+if [ -z "$cmd" ]; then
+  echo -e "${red}No package manager found${reset}"
+  exit 1
+fi
+
+$cmd $flags | awk -v count=0 '
+  /kmod-qca|^nss/ {
   if(count>0) tab="            "
   print tab $0
   count++