mstrool: only use intel targets for actual intel CPUs

VIA c3 & C7 use the the family of 0x6 and model 10, but are not quite
Pentium III.

Change-Id: I85e9853b42cfd20db46db0bd244620d6813bc826
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Reviewed-on: https://review.coreboot.org/18256
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

util/msrtool/intel_atom.c

@@ -16,8 +16,9 @@
 #include "msrtool.h"
 
 int intel_atom_probe(const struct targetdef *target, const struct cpuid_t *id) {
-	return (0x6 == id->family) &&
-		(0x1c == id->model);
+	return ((VENDOR_INTEL == id->vendor) &&
+		(0x6 == id->family) &&
+		(0x1c == id->model));
 }
 
 const struct msrdef intel_atom_msrs[] = {