Sleep 20ms after VENC reset

configname: CONFIG_FB_OMAP2_DSS_SLEEP_AFTER_VENC_RESET

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Frame buffer Devices
└─>Device Tree and Open Firmware support
└─>OMAP2+ frame buffer support
└─>Sleep 20ms after VENC reset
In linux kernel since version 4.1 (release Date: 2015-06-21)  
There is a 20ms sleep after VENC reset which seemed to fix the
reset. The reason for the bug is unclear, and it's also unclear
on what platforms this happens.

This option enables the sleep, and is enabled by default. You can
disable the sleep if it doesn't cause problems on your platform.