4.19-stable patches

4.19-stable patches

added patches:
	serial-max310x-fix-to-avoid-potential-null-pointer-dereference.patch
	serial-mvebu-uart-fix-to-avoid-a-potential-null-pointer-dereference.patch
	serial-sh-sci-fix-setting-scscr_tie-while-transferring-data.patch
	staging-comedi-ni_mio_common-fix-divide-by-zero-for-dio-cmdtest.patch
	staging-erofs-fix-to-handle-error-path-of-erofs_vmap.patch
	staging-speakup_soft-fix-alternate-speech-with-other-synths.patch
	staging-vt6655-fix-interrupt-race-condition-on-device-start-up.patch
	staging-vt6655-remove-vif-check-from-vnt_interrupt.patch
	tty-atmel_serial-fix-a-potential-null-pointer-dereference.patch
	tty-mxs-auart-fix-a-potential-null-pointer-dereference.patch
	tty-serial-qcom_geni_serial-initialize-baud-in-qcom_geni_console_setup.patch
	usb-serial-cp210x-add-new-device-id.patch
	usb-serial-ftdi_sio-add-additional-novatech-products.patch
	usb-serial-mos7720-fix-mos_parport-refcount-imbalance-on-error-path.patch
	usb-serial-option-add-olicard-600.patch
	usb-serial-option-add-support-for-quectel-em12.patch
	usb-serial-option-set-driver_info-for-sim5218-and-compatibles.patch