[Feature request]: Regression to take more patches in single instance

[Amar Tumballi <atumball@xxxxxxxxxx>]

Hi,

I was trying to fire some regression builds on very minor patches today, 
and noticed (always known, but faced pain of 'waiting' today) that we 
can fire regression build on only one patch (or a patchset if its 
submitted with dependency added while submitting). And each regression 
run takes approx 30mins.

With this model, we can at max take only ~45 patches in a day, which 
won't scale up if we want to grow with more people participating in code 
contribution. Would be great to have an option to submit regression run 
with multiple patch numbers, (technically they should be applicable one 
top of other in any order if not dependent), and it should work fine. 
That way, we can handle more review load in future.

Regards,
Amar