drm/radeon: Renaming DP training vswing pre emph defines
drm/radeon: Renaming DP training vswing pre emph defines

Rename the defines to have levels instead of values for vswing and
pre-emph levels as the values may differ in other scenarios like low vswing of
eDP1.4 where the values are different.

Done using following cocci patch for each define:
@@
@@

 # define DP_TRAIN_VOLTAGE_SWING_1200     (3 << 0)
+ # define DP_TRAIN_VOLTAGE_SWING_LEVEL_3     (0 << 0)

...

Signed-off-by: Sonika Jindal <cd61f9fbc6d7aeabe3269febf35c0efd90c23268@intel.com>
Acked-by: Alex Deucher <bf84f557a1e54fd62cd73c6847f7d9df60e9fbef@gmail.com>
Acked-by: Dave Airlie <f2295d84e358395675bc8031be58672073ae065e@gmail.com>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

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