Description: team: fix null-ptr-deref when team device type is changed
References:
Notes:
 carnil> Introduced in 1d76efe1577b ("team: add support for non-ethernet devices").
 carnil> Vulnerable versions: 3.7-rc1.
Bugs:
upstream: released (6.6-rc3) [492032760127251e5540a5716a70996bacf2a3fd]
6.7-upstream-stable: N/A "Fixed before branching point"
6.6-upstream-stable: N/A "Fixed before branching point"
6.1-upstream-stable: released (6.1.56) [2f0acb0736ecc3eb85dc80ad2790d634dcb10b58]
5.10-upstream-stable: released (5.10.198) [b44dd92e2afd89eb6e9d27616858e72a67bdc1a7]
4.19-upstream-stable: released (4.19.296) [a7fb47b9711101d2405b0eb1276fb1f9b9b270c7]
sid: released (6.5.6-1)
6.1-bookworm-security: released (6.1.64-1)
5.10-bullseye-security: released (5.10.205-1)
4.19-buster-security: released (4.19.304-1)