modeld: use correct intrinsics for extra transform when wide camera disabled

[Quantizr]

Description

DISABLE_WIDE_ROAD flag currently leads to using the ecam intrinsics on the narrow cam for the big_img model input. This PR uses the proper intrinsics if the wide camera is not available.

[Quantizr]

Ran some tests to see how close the model path is to original given the weirdly warped big_img, this change leads to a consistent noticeable improvement. The old version still drives well enough that I've been using it for almost a year as the current models barely look at the big_img (in fact, if you just put a static gray for big_img the model drives alright). On the other hand, only using the wide cam and cropping for the narrow cam with DISABLE_ROAD makes the driving almost unusable.

Time-weighted lateral path deviation in meters vs typical two camera setup across 38 segments:

#	scenario	mean dev
1	DISABLE_WIDE_ROAD	0.049
2	WIDE = NARROW	0.050
3	GRAY128_WIDE	0.060
4	FIXED DISABLE_WIDE_ROAD	0.037
5	DISABLE_ROAD	0.295

[github-actions]

Process replay diff report

Replays driving segments through this PR and compares the behavior to master.
Please review any changes carefully to ensure they are expected.

✅ 0 changed, 66 passed, 0 errors