3.19-stable patches

3.19-stable patches

added patches:
	dm-hold-suspend_lock-while-suspending-device-during-device-deletion.patch
	dm-io-deal-with-wandering-queue-limits-when-handling-req_discard-and-req_write_same.patch
	dm-snapshot-suspend-merging-snapshot-when-doing-exception-handover.patch
	dm-snapshot-suspend-origin-when-doing-exception-handover.patch
	dm-thin-fix-to-consistently-zero-fill-reads-to-unprovisioned-blocks.patch
	dmaengine-dw-append-module_alias-for-platform-driver.patch
	hfsplus-fix-b-tree-corruption-after-insertion-at-position-0.patch
	spi-dw-mid-clear-busy-flag-fist-and-test-other-one.patch
	spi-qup-fix-cs-num-dt-property-parsing.patch
	spi-trigger-trace-event-for-message-done-before-mesg-complete.patch