Rust

uefi: Fix clippy::unnecessary_unwrap lint #7037

Job	Run time
Integration Test (x86_64)	2m 1s
Integration Test (AArch64)	1m 18s
Nightly (build, test, doc)	1m 40s
Integration Test (x86_64 Windows)	3m 52s
Build Standard Binary (nightly)	25s
Build (stable MSRV)	35s
Unit + Doc Tests	51s
Build (feature permutations)	3m 44s
Unit + Doc Tests (Miri)	1m 8s
Integration Test (IA-32)	1m 28s
Build (uefi-raw MSRV)	35s
Test Coverage	45s
	18m 22s

Provide feedback