qseecom: Add support for bus scaling

Add support for scaling bus to various level:
LOW, MEDIUM, HIGH.  Expose IOCTL to user space
clients to enable selecting a specific bus bandwidth
setting.

Change-Id: I8ef94b84464e86d3a71e4c78c502e99ef2e0ec9a
Signed-off-by: Mona Hossain <mhossain@codeaurora.org>
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
2 files changed