kernel: backport ipeth CDC NCM support

kernel: backport ipeth CDC NCM support

Fixes no communication with tethered iOS devices in CDC NCM mode.
Freshly booted iOS devices start in legacy mode, but are put into
NCM mode by the official Apple driver.

[1] https://github.com/torvalds/linux/commit/a2d274c62e44b1995c170595db3865c6fe701226

Fixes: #12566
Tested-by: Georgi Valkov <gvalkov@gmail.com>
Signed-off-by: Foster Snowhill <forst@pen.gy>
Signed-off-by: Georgi Valkov <gvalkov@gmail.com>
[ better reference fixed issue ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>