This patch adds firmware for Keystone QMSS Accumulator PDSP. This is required
to support Accumulator queues. Accumulator queues are one of the queue types
supported in drivers/soc/ti/knav_qmss_acc.c. This queue can be part of a
channel that supports one queue or multiple queue per channel and are managed
by the Accumulator PDSP. For more details on hardware, please refer
http://www.ti.com/lit/ug/sprugr9h/sprugr9h.pdf

 and DT documentation below in
linux kernel source tree

Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Kyle McMartin <kyle@kernel.org>