drm/i915/display: Implement wa_16011342517

drm/i915/display: Implement wa_16011342517

While doing voltage swing for type-c phy
for DP 1.62 and HDMI write the
LOADGEN_SHARING_PMD_DISABLE bit to 1.

-v2: Update commit.
     Add bspec[Suraj]
-v3: Move w/a before DKL_TX_PMD_LANE_SUS.
     Use DKL_TX_DPCNTL2[Ville]
-v4: Use intel_encoder_is_dp and
     intel_encoder_is_hdmi. [Suraj]

Bspec: 55359
Signed-off-by: Nemesa Garg <nemesa.garg@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://lore.kernel.org/r/20250625074911.194085-1-nemesa.garg@intel.com