Add prepare idle and resume idle call for uart4 used by 3630.
Signed-off-by: Govindraj.R <govindraj.raja@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
        /* PER */
        if (per_next_state < PWRDM_POWER_ON) {
                omap_uart_prepare_idle(2);
+               omap_uart_prepare_idle(3);
                omap2_gpio_prepare_for_idle(per_next_state);
                if (per_next_state == PWRDM_POWER_OFF)
                                omap3_per_save_context();
                if (per_prev_state == PWRDM_POWER_OFF)
                        omap3_per_restore_context();
                omap_uart_resume_idle(2);
+               omap_uart_resume_idle(3);
        }
 
        /* Disable IO-PAD and IO-CHAIN wakeup */