docs: fix KMS policy to wildcard Describe

[jmdeal]

Fixes #N/A

Description Fix the recommended KMS policy to wildcard the kms:Describe* permissions. How was this change tested?

Does this change impact docs?

• [ ] Yes, PR includes docs updates
• [ ] Yes, issue opened: #
• [x] No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

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[coveralls]

Pull Request Test Coverage Report for Build 9457572770

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.03%) to 82.489%

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Files with Coverage Reduction	New Missed Lines	%
pkg/fake/utils.go	2	94.56%
<!--	Total:	2		-->

Totals
Change from base Build 9455586426:	-0.03%
Covered Lines:	5554
Relevant Lines:	6733

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💛 - Coveralls