In preparation to using a generic API in the DRM core for continuous CRC
generation, move the related code out of i915_debugfs.c into a new file.
Eventually, only the Intel-specific code will remain in this new file.
v2: Rebased.
v6: Rebased.
v7: Fix whitespace issue.
v9: Have intel_display_cr
In preparation to using a generic API in the DRM core for continuous CRC
generation, move the related code out of i915_debugfs.c into a new file.
Eventually, only the Intel-specific code will remain in this new file.
v2: Rebased.
v6: Rebased.
v7: Fix whitespace issue.
v9: Have intel_display_cr
