Convert rust module-info.json to soong

This leads to idendical results as before, with the exception of
the "required" field in module-info.json. Make has more complicated
logic to fill out the required field than soong, and it leads to
make-specific names such as ones suffixed with :32 and don't make sense
in soong. I'm don't think there are critical users of that field though,
so I'll try removing it.

Everything else should be identical to the make-generated information
though.

Bug: 389720048
Test: diff'd module-info.json before and after this cl in soong+make mode
Change-Id: I74aefe578287f07474c15e5f92a0c2780a679047