Add registry to configure MTL Media CCS

[vcheah]

Default CCS is enabled when compiled in debug/internal-release build.
The registry key allows user to configure them accordingly.

[Guangyao-Bai]

can you give more details why you need this change? why you care and want to change CCS node? Any background will help me understand.

[Guangyao-Bai]

trying to understand, default Value is 0, when you read a data which is none 0, then you will force a 0 ? this means you want to make FtrCCSNode to 0 in Debug/Release version of driver?

[vcheah]

I've made a mistake. The default value of FtrCCSNode is 1. I have it updated in the next patch and added a comment accordingly. For debug/internal-release build, we could use registry key to enable/disable CCS.

[vcheah]

can you give more details why you need this change? why you care and want to change CCS node? Any background will help me understand.

Here is some background story that I've gotten from my colleague. I'll add you into the email thread.

We would like to add in new registry key to disable MTL Media CCS, just in case user would to disable it by themselves.
Previous we are hitting some media issue related to Media CCS in MTL platform causing GPU hung issue, we end up have to disable MTL Media CCS in media-driver side. Recently Tong Liang told us got fixed in kernel 6.5 version, so we enable back MTL Media CCS in our Ubuntu BKC. We would like still to keep this registry key in media driver side, to allow user to disable MTL Media CCS if needed that time.