mfd: rc5t583-irq: Remove the unneeded include <linux/i2c.h>

This driver does not use i2c, so there is no point in including
<linux/i2c.h>

Remove it and add the needed <linux/device.h> instead, which is much more
lightweight.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/128025bf5b81f5424db2202b0c8cfd9722c28aab.1682319383.git.christophe.jaillet@wanadoo.fr