[RESEND PATCH v2] remoteproc: qcom: Venus firmware loader support for msm8996

[Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>]

This Patch is based on 
        https://patchwork.kernel.org/patch/9415627/
        https://patchwork.kernel.org/patch/9415651/

This patch add necessary routine and data structure to support standalone venus 
firmware load on msm8996. Below are brief of changes. 

1- Add private data structure which provide string-name and rate of clock
   on msm8996 platform for venus.
2- Provide clock initialization and enable/disable functionality.

below is console log on msm8996 platform with above change, this is standalone test log 
without video driver enablement.

[    2.612011]  remoteproc0: soc:vidc_tzpil@0 is available
[    2.616939]  remoteproc0: Note: remoteproc is still under development and considered experimental.
[    2.621963]  remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    2.631037] qcom-tz-pil soc:vidc_tzpil@0: Venus rproc probe done
[    2.641463]  remoteproc0: powering up soc:vidc_tzpil@0
[    2.641468]  remoteproc0: Booting fw image venus.mdt, size 6812
[    2.698127]  remoteproc0: remote processor soc:vidc_tzpil@0 is now up

Changes w.r.t. patchset 1
	reorganization and cleanup of added code.
Avaneesh Kumar Dwivedi (1):
  remoteproc: qcom: Add venus rproc support on msm8996 platform.

 .../devicetree/bindings/remoteproc/qcom,venus.txt  |  26 ++++-
 drivers/remoteproc/qcom_venus_pil.c                | 116 ++++++++++++++++++++-
 2 files changed, 140 insertions(+), 2 deletions(-)

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