Support disable profile bundle based on Arch

[Vincent056]

Add support to disable profilebundle creation based on architecture. Disable rhcos4 on ppc64le and s390x

[rhmdnd]

Instead of building a separate map, I wonder if we can reuse the getValidPlatform function by implementing the goruntime.GOARCH check there. Maybe something like:

func getValidPlatform(p string) PlatformType {
        arch := goruntime.GOARCH
	switch {
	case strings.EqualFold(p, string(PlatformOpenShift)) && (arch == "ppc64le") :
		return PlatformOpenShiftOnPower
	case strings.EqualFold(p, string(PlatformOpenShift)) && (arch == "s390x") :
		return PlatformOpenShiftOnZ
	case strings.EqualFold(p, string(PlatformOpenShift)):
		return PlatformOpenShift
	case strings.EqualFold(p, string(PlatformEKS)):
		return PlatformEKS
	case strings.EqualFold(p, string(PlatformHyperShift)):
		return PlatformHyperShift
	case strings.EqualFold(p, string(PlatformGeneric)):
		return PlatformGeneric
	default:
		return PlatformUnknown
	}
}

Then we'd have somthing like:

defaultProductsPerPlatform = map[PlatformType][]string{
	PlatformOpenShift: {
		"rhcos4",
		"ocp4",
	},
        PlatformOpenShiftOnPower: {
		"ocp4",
	},
        PlatformOpenShiftOnZ: {
		"ocp4",
	},

Then we continue to have a single mapping for default product support.

[Vincent056]

I was thinking of having disableProductPerArch to work as a filter, will we have other platforms supported on P/Z in the future?

[yuumasato]

What I also appreciate about the Lance's suggestion is the increased flexibility.
It also allows us to add/enable arch specific products, not only remove/disable.

[Vincent056]

I think that makes sense, just updated it

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: rhmdnd, Vincent056

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