Keyboard code cleanup
- BX_CPU_LEVEL < 3 doesn't exist in Bochs
- verbose debug output removed
- tab2space and minor coding style changes


git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12076 6c8e4198-a580-4521-a02f-c9ae86df1db9
fixed #UD condition for multi-byte prefix opcodes VEX/EVEX/XOP

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12077 6c8e4198-a580-4521-a02f-c9ae86df1db9