drm/i915/dp: Remove intel_ prefix from hw signal_levels functions
drm/i915/dp: Remove intel_ prefix from hw signal_levels functions

intel_ is for generic code bxt_ and friends for platform specific
functions. Remove the intel_ prefix to be consistent with our naming.

Random OCD bikeshed I've spotted while merging bxt patches.

v2: Oops, git add fail.

Cc: Imre Deak <fbd5edba1988036c8923f0cca0cce6ac4811db29@intel.com>
Reviewed-by: Imre Deak <fbd5edba1988036c8923f0cca0cce6ac4811db29@intel.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs