target/i386: fix INVD vmexit

Due to a typo or perhaps a brain fart, the INVD vmexit was never generated.
Fix it (but not that fixing just the typo would break both INVD and WBINVD,
due to a case of two wrongs making a right).

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

target/i386/tcg/translate.c

@@ -6119,7 +6119,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
     case 0x108: /* invd */
     case 0x109: /* wbinvd */
         if (check_cpl0(s)) {
-            gen_svm_check_intercept(s, (b & 2) ? SVM_EXIT_INVD : SVM_EXIT_WBINVD);
+            gen_svm_check_intercept(s, (b & 1) ? SVM_EXIT_WBINVD : SVM_EXIT_INVD);
             /* nothing to do */
         }
         break;