of: Format string bug in drivers/of/of_i2c.c

Format string bug.  Not exploitable, as this is only writable by root,
but worth fixing all the same.

See 326f6a5c9c9e1a62aec37bdc0c3f8d53adabe77b

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
1 file changed