Merge part of PR by rei141

Fixes in VM Entry Checks for Guest Segment Registers #51

Correction in Type range checks for DS, ES, FS, GS:
The original code erroneously applied the check for types less than 11, excluding types equal to 11.
This is not in accordance with Intel SDM, Vol. 3C, Chapter 27.3.1.2, which states that the check should include types equal to or less than 11.
This fix corrects this by including types equal to or less than 11 in the check.

bochs/cpu/vmx.cc

@@ -1638,7 +1638,7 @@ Bit32u BX_CPU_C::VMenterLoadCheckGuestState(Bit64u *qualification)
         }
 
         if (! (vm->vmexec_ctrls3 & VMX_VM_EXEC_CTRL3_UNRESTRICTED_GUEST)) {
-           if (guest.sregs[n].cache.type < 11) {
+           if (guest.sregs[n].cache.type <= 11) {
               // data segment or non-conforming code segment
               if (guest.sregs[n].selector.rpl > guest.sregs[n].cache.dpl) {
                 BX_ERROR(("VMENTER FAIL: VMCS guest non-conforming %s.RPL < %s.DPL", segname[n], segname[n]));