[bug] Too many required spot type machines when setting compute-sizes

[adrianriobo]

Recently we included a number of spot types to ensure we will get machines.

The number

mapt/pkg/provider/aws/data/spot.go

Line 57 in de73894

var numberOfTypesForSpot = 8

is fixed to 8 which will works when asking for machines based on params (CPU, Memory,...)

But when using specific compute-sizes if the number of machines is less than 8 ...it is failing.

We need to check if compute-sizes is set, and if that is the case dynamically adjust the field