ARM: OMAP: I2C: Support New read, write and probe functions for OMAP3

New i2c_read, i2c_write and i2c_probe functions, tested on OMAP4
(4430/60/70), OMAP5 (5430) and AM335X (3359) were added in 960187ff(
"ARM: OMAP: I2C: New read, write and probe functions") but not tested
on OMAP3.  This patch will allow the updated drivers using device tree and
DM_I2C to operate on OMAP3.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>