RecommendedPolicyType param updates

[chrisda]

Per IM convo

[opbld33]

Docs Build status updates of commit f363839:

✅ Validation status: passed

File	Status	Preview URL	Details
exchange/exchange-ps/exchange/New-AntiPhishPolicy.md	✅Succeeded	View (exchange-ps)
exchange/exchange-ps/exchange/New-HostedContentFilterPolicy.md	✅Succeeded	View (exchange-ps)
exchange/exchange-ps/exchange/New-HostedOutboundSpamFilterPolicy.md	✅Succeeded	View (exchange-ps)

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