Fix typo in UNKNOWN core name

TiborGY · web-flow · commit 211120c50832 · 2018-12-27T23:09:21.000+01:00
Should be of no consequence, right?
diff --git a/cpuid_x86.c b/cpuid_x86.c
@@ -1649,7 +1649,7 @@ static char *lowercpuname[] = {
 };
 
 static char *corename[] = {
-  "UNKOWN",
+  "UNKNOWN",
   "80486",
   "P5",
   "P6",
