i2c: Drop missing things to 19.2 MHz

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>

i2c: Drop last value to 19.2 MHz

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>
Signed-off-by: engstk <eng.stk@sapo.pt>