HrDecoder: invalid R/M offset decoding

[X547]

This is https://github.com/adimetrius/Herschel/commit/e0301dc20bbe201b0e6476709fafeb45e0d6de0b.

HrDecoder output:

0001414D	48|8D 48 10 	lea  RCX, 82273[RAX]

Correct output:

.text:000000000001414D                 lea     rcx, [rax+10h]

[X547]

This feature is correctly implemented in my WorkDecX86.