Merge branch 'net-dsa-realtek-two-rtl8366rb-fixes'

Linus Walleij says:

====================
net: dsa: realtek: Two RTL8366RB fixes

These minor fixes were found while digging into other
issues: a weirdly named variable and bogus MTU handling.
Fix it up.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
====================

Link: https://lore.kernel.org/r/20231209-rtl8366rb-mtu-fix-v1-0-df863e2b2b2a@linaro.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>