[Backport v3.7-branch] net: Update IP address refcount properly when address already exists#85659

nashif merged 2 commits intozephyrproject-rtos:v3.7-branchzephyrproject-rtos/zephyr:v3.7-branchfrom

jukkar:fix/85380/netif-ip-address-disappears.v3.7jukkar/zephyr:fix/85380/netif-ip-address-disappears.v3.7Copy head branch name to clipboard