drm: make the connector properties code use the object properties code
drm: make the connector properties code use the object properties code

In the future, we may want to kill the internal functions:
- drm_connector_attach_property
- drm_connector_property_set_value
- drm_connector_property_get_value

It seems the IOCTL drm_mode_connector_property_set_ioctl will have to live, but
we may change libdrm to not use it anymore, if we want.

Reviewed-by: Eugeni Dodonov <8cab21ffd2ceb3ee06d75e34eb970dfea6bd7cc6@intel.com>
Reviewed-by: Rob Clark <e4b68ba543616fa01f7d35cc4057ddf9f04ce2e6@linaro.org>
Tested-by: Rob Clark <e4b68ba543616fa01f7d35cc4057ddf9f04ce2e6@linaro.org>
Signed-off-by: Paulo Zanoni <cc0e04a2103c45cd195651d976f79813d0f66bdf@intel.com>
Signed-off-by: Dave Airlie <f2295d84e358395675bc8031be58672073ae065e@redhat.com>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas