BHV-17798: onholdulse event is not getting right delay value from holdPulseDefaultConfig

Issue:
Drag.js file has changed to support custom event type.
In this change, default delay value is removed and frequency is added.
Spotlight is referencing delay variable fro drag.js but spotlight is not updated to reference frequency.

Fix:
Change delay to frequency variable.

DCO-1.1-Signed-Off-By: Kunmyon Choi kunmyon.choi@lge.com
Merge pull request #154 from enyojs/BHV-17798-kunmyonchoi

BHV-17798 (2.5.2-pre.8): onholdulse event is not getting right delay value from holdPu...

Reviewed-By: Gray Norton (gray.norton@lge.com)
Integrated-By: Aaron Tam (aaron.tam@lge.com)