km/common: remove printfs for i2c deblocking code

This code will also be used before reallocation and during this time we
are not allowed to do these printings.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Prafulla Wadaskar <Prafulla@marvell.com>
Acked-by: Heiko Schocher <hs@denx.de>