linuxkpi: Define `MIN_T()` and `MAX_T()`

[dumbbell]

Summary

There are the same as MIN() and MAX() except that they take a type to cast both arguments to compare.

The DRM generic code started to use it in Linux 6.11.

This is part of the update of DRM drivers to Linux 6.11.

Sponsored by: The FreeBSD Foundation

[emaste]

I think we want ()s
Considering uses like MIN_T(int, a - b, a + b)

sys/compat/linuxkpi/common/include/linux/minmax.h

63

[dumbbell]

Use parenthesis as suggested by @emaste.