IOMMU: Style Fix ups (minor) #1502

Job	Run time
Freeze Code	17s
rustfmt_check	16s
clippy_check	23s
Checks / Style	57s
Checks / Trailing Whitespace	3s
Checks / Portable Shell	4s
Checks / Gitlint	39s
Build SDK / Build SDK (macOS, all targets)	26m 32s
Build SDK / Build SDK (Linux x86_64)	30m 57s
	1h 0m 8s

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