Minor clarification DescriptorTablePointer::limit comment #3233

Job	Run time
kani	52s
Bootloader Integration Test (ubuntu-latest)	53s
Check Formatting	12s
Clippy	15s
Bootloader Integration Test (macos-latest)	1m 6s
Bootloader Integration Test (windows-latest)	2m 58s
Semver Checks	4m 5s
Test MSRV and Stable Features (nightly)	17s
Test (ubuntu-latest)	26s
Test MSRV and Stable Features (1.59)	25s
Test (macos-12)	40s
Test (macos-latest)	23s
Test (windows-latest)	49s
	13m 21s

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