Revert "usb: chipidea: imx: set CI_HDRC_IMX28_WRITE_FIX for imx28"

This reverts commit 30666249eae3b04875d514dea557d1ab1468c006, as it
depended on a previous patch that I rejected, causing a build error
here.  Sorry about that.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Peter Chen <peter.chen@freescale.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/usb/chipidea/ci_hdrc_imx.c
Simple merge