linux-yocto/4.4: gpio-pca953x: fix the "drive" property cannot read/write
The gpio_drive_show/store use incorrect gpio_desc,
this causes the drive sysfs property cannot be used,
This patch fixes this issue
Upstream-status: Inappropriate, custom code for legacy userspace
Signed-off-by: Yong Li <yong.b.li@intel.com> Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
