default or selected kernelversion does not have config value CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT.
Result is shown for kernelversion 5.3.7

Number of queued USB Request Blocks for Highspeed Stream Transfers

configname: CONFIG_DVB_CINERGYT2_STREAM_URB_COUNT

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia devices
└─>DVB/ATSC adapters
└─>Number of queued USB Request Blocks for Highspeed Stream Transfers
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
USB Request Blocks for Highspeed Stream transfers are scheduled in
a queue for the Host Controller.

Usually the default value is a safe choice.

You may increase this number if you are using this device in a
Server Environment with many high-traffic USB Highspeed devices
sharing the same USB bus.