Fix CONFIG_IP_SET_MAX setting in action.yml

Updated the configuration command to set CONFIG_IP_SET_MAX using the correct syntax.

.github/actions/IPv6_NAT/action.yml

@@ -9,7 +9,7 @@ runs:
     run: |
 
      "$COMMON/scripts/config" --file "$GKI_DEFCONFIG" --enable CONFIG_IP_SET
-     "$COMMON/scripts/config" --file "$GKI_DEFCONFIG" --enable CONFIG_IP_SET_MAX=65534"
+     "$COMMON/scripts/config" --file "$GKI_DEFCONFIG" --set-val CONFIG_IP_SET_MAX 65534
      "$COMMON/scripts/config" --file "$GKI_DEFCONFIG" --enable CONFIG_IP_SET_BITMAP_IP
      "$COMMON/scripts/config" --file "$GKI_DEFCONFIG" --enable CONFIG_IP_SET_BITMAP_IPMAC
      "$COMMON/scripts/config" --file "$GKI_DEFCONFIG" --enable CONFIG_IP_SET_BITMAP_PORT