Everything now has been checked against how nvgpu handles it

The code in nvdebug.h has been rearranged to enable an easier merge
against the jbakita-wip branch.

- Update comments to match new structure
- Make show() function idempotent
- Skip empty table entries without aborting
- Include names for new engine types
- Add warning log messages for skipped table entries
- Remove non-functional runlist file creation logic for Ampere+

 - Debugged data display errors.
 - Debugged crash bugs.
 - Debugged memory issue.

 - Functions have been consolidated.
 - Code was clarified and tidied up overall.
 - Unnecessary elements were removed.

 - Added device_info_iter
 - Merged functions in device_info_procfs.c
 - Separated device_info data structs by version in nvdebug.h
 - Fixed issue with device_info runlist ID data

 - Fixed device_info crash bugs
 - Made further edits to display functionality
 - Refactored code to enhance readability

- Added an Ampere version of the device info data.
- Added Ampere versions of auxillary functions.
- Modified display functions to accommodate Ampere data.
- Made other various small modifications.

- Including missing dereference to finish getting the address of
  the control register range
- Add zero-initialization to the proc_ops structure in copat_ops to
  insure that all intentionally unset fields remain unset
- Set .llseek in all the file_operations structures, as recent
  kernels require this to be explictly set

Works around change in parameters to proc initialization functions
via a hacky function which rewrites the layout. This also required
making all the struct file_operations writable.

Also start reducing dependency on nvgpu headers.

Known issues:
- Incorrect message printed in log after module is loaded. Unclear
  if this is because the register detection logic is broken, or if
  the layout of the data at NV_MC_BOOT_0 has changed.
- Not tested