linux-wandboard

[media] em28xx-i2c: Add a read after I2C write

All I2C logs we got for em28xx does that. With Terratec H5, at
400MHz speed, it seems that this is required, to avoid having
troubles at the I2C bus.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>