arch: arm: mach-qcom: Add support for cpubw governor for 9607 target

Add support for cpubw governor to monitor the traffic from
cpu to ddr for 9607 target.

Change-Id: Ibf88998c5112b4f9a03dcab3f4884238277ca33f
Signed-off-by: Haribabu Gattem <haribabu@codeaurora.org>