More std lib fixes

Just selecting the same codepath as other BSD's for the most part.

core/sys/info/cpu_intel.odin

@@ -67,7 +67,7 @@ init_cpu_features :: proc "c" () {
 	try_set(&set, .os_xsave,  27, ecx1)
 	try_set(&set, .rdrand,    30, ecx1)
 
-	when ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD {
+	when ODIN_OS == .FreeBSD || ODIN_OS == .OpenBSD || ODIN_OS == .NetBSD {
 		// xgetbv is an illegal instruction under FreeBSD 13 & OpenBSD 7.1
 		// return before probing further
 		cpu_features = set
@@ -133,4 +133,4 @@ init_cpu_name :: proc "c" () {
 		brand = brand[:len(brand) - 1]
 	}
 	cpu_name = brand
-}
+}