4.20-stable patches

4.20-stable patches

added patches:
	cfg80211-call-disconnect_wk-when-ap-stops.patch
	debugfs-fix-debugfs_rename-parameter-checking.patch
	iio-adc-axp288-fix-ts-pin-handling.patch
	iio-chemical-atlas-ph-sensor-correct-iio_temp-values-to-millicelsius.patch
	iio-ti-ads8688-update-buffer-allocation-for-timestamps.patch
	libata-add-nolpm-quirk-for-samsung-mz7te512hmhp-000l1-ssd.patch
	mei-me-add-ice-lake-point-device-id.patch
	misc-vexpress-off-by-one-in-vexpress_syscfg_exec.patch
	mtd-make-sure-mtd-erasesize-is-valid-even-if-the-partition-is-of-size-0.patch
	mtd-rawnand-gpmi-fix-mx28-bus-master-lockup-problem.patch
	mtd-spinand-fix-the-error-cleanup-path-in-spinand_init.patch
	mtd-spinand-handle-the-case-where-program-load-does-not-reset-the-cache.patch
	samples-mei-use-dev-mei0-instead-of-dev-mei.patch
	signal-always-attempt-to-allocate-siginfo-for-sigstop.patch
	signal-always-notice-exiting-tasks.patch
	signal-better-detection-of-synchronous-signals.patch
	tools-iio-iio_generic_buffer-make-num_loops-signed.patch