4.9-stable patches

4.9-stable patches

added patches:
	drivers-iio-magnetometer-fix-sparse-endianness-warnings-cast-to-restricted-__be16.patch
	iio-accel-kxsd9-fix-alignment-of-local-buffer.patch
	iio-accel-mma7455-fix-timestamp-alignment-and-prevent-data-leak.patch
	iio-accel-mma8452-fix-timestamp-alignment-and-prevent-data-leak.patch
	iio-adc-ti-adc081c-fix-alignment-and-data-leak-issues.patch
	iio-light-max44000-fix-timestamp-alignment-and-prevent-data-leak.patch
	iio-magnetometer-ak8975-fix-alignment-and-data-leak-issues.patch
	staging-wlan-ng-fix-out-of-bounds-read-in-prism2sta_probe_usb.patch
	usb-core-add-helpers-to-retrieve-endpoints.patch