Fix #463: Wrong target offset calculated when using bnd prefix #870

Job	Run time
Amalgamated build (Ubuntu 22.04)	5s
fuzzing (address)	6m 34s
MSBuild build (windows-2022)	1m 20s
fuzzing (undefined)	6m 55s
fuzzing (memory)	7m 29s
CMake build + tests (macOS-latest )	21s
CMake build + tests (macOS-latest -DZYAN_NO_LIBC=ON)	15s
CMake build + tests (windows-2022 )	1m 40s
CMake build + tests (windows-2022 -DZYAN_NO_LIBC=ON)	1m 21s
CMake build + tests (ubuntu-22.04 )	19s
CMake build + tests (ubuntu-22.04 -DZYAN_NO_LIBC=ON)	6s
CMake build + tests (ubuntu-22.04 -DZYDIS_MINIMAL_MODE=ON -DZYDIS_FEATURE_ENCODER=OFF)	8s
CMake build + tests (windows-2022 -TClangCL)	2m 6s
	28m 39s

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