Add halt interrupt support. Given that the misc interrupt handler already
check halt state, the driver just need to run the halt handling code when
receiving the halt interrupt.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/163114224352.846654.14334468363464318828.stgit@djiang5-desk3.ch.intel.comSigned-off-by: Vinod Koul <vkoul@kernel.org>