i2c: omap: Fix an error handling path in omap_i2c_probe()

If an error occurs after calling mux_state_select(), mux_state_deselect()
should be called as already done in the remove function.

Fixes: b6ef830c ("i2c: omap: Add support for setting mux")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: <stable@vger.kernel.org> # v6.15+
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/998542981b6d2435c057dd8b9fe71743927babab.1749913149.git.christophe.jaillet@wanadoo.fr