Add information regarding DLL register properties for getting board
specific configurations. These DLL register settings may vary from
board to board.
Signed-off-by: NSarthak Garg <sartgarg@codeaurora.org>
Link: https://lore.kernel.org/r/1590139950-7288-3-git-send-email-sartgarg@codeaurora.orgSigned-off-by: NUlf Hansson <ulf.hansson@linaro.org>