Use proper variable typing

Orig-Change-Id: If5c33d90b33f538448ac12e7bee94b4b9173d39c
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
diff --git a/libm/i387/fenv.c b/libm/i387/fenv.c
index 2794faf..aabe270 100644
--- a/libm/i387/fenv.c
+++ b/libm/i387/fenv.c
@@ -153,7 +153,8 @@
 int
 feupdateenv(const fenv_t *envp)
 {
-	int mxcsr, status;
+	int mxcsr;
+	short status;
 
 	__fnstsw(&status);
 	if (__HAS_SSE())