Add clock for CPPI 4.1 DMA engine thats
part of USB OTG subsystem on DA830 and
DA850.
This builds on top of the pull request
sent earlier:
https://www.spinics.net/lists/arm-kernel/msg573985.html
* tag 'davinci-for-v4.12/soc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: Add clock for CPPI 4.1 DMA engine
Signed-off-by: Olof Johansson <olof@lixom.net>