3.18-stable patches

3.18-stable patches

added patches:
	arm-fix-put_user-for-gcc-8.patch
	can-xilinx_can-fix-device-dropping-off-bus-on-rx-overrun.patch
	can-xilinx_can-fix-incorrect-clear-of-non-processed-interrupts.patch
	can-xilinx_can-fix-recovery-from-error-states-not-being-propagated.patch
	can-xilinx_can-fix-rx-loop-if-rxnemp-is-asserted-without-rxok.patch
	can-xilinx_can-fix-rx-overflow-interrupt-not-being-enabled.patch
	can-xilinx_can-keep-only-1-2-frames-in-tx-fifo-to-fix-tx-accounting.patch
	usb-cdc_acm-add-quirk-for-castles-vega3000.patch
	usb-core-handle-hub-c_port_over_current-condition.patch
	usb-gadget-f_fs-only-return-delayed-status-when-len-is-0.patch