Update Sony ILCE-1M2 color matrix

[kmilos]

Changed in ADC 17.2 since #768

[LebedevRI]

I don't recall what's our stance on updating these things, since it breaks all the image edits downstream?
That we are free to do such updates, and consumers should cache the color matrix used?

[kmilos]

consumers should cache the color matrix used?

I think this is the case, so existing edits are preserved and only newly imported ones are affected, right? @TurboGit @jenshannoschwalm

[LebedevRI]

I mean more generally, since dt isn't, perhaps, the only user.

[LebedevRI]

Looks like we've updated color matrix at least once before: #379
So i'm just going to pretend that it is fine to do.

[kmilos]

So i'm just going to pretend that it is fine to do.

Thanks, that's sensible, especially given that it didn't end up on stable branch and only dt 5.0 is using it so far most likely.