7133301: (process) UNIXProcess_md.c should include sys/wait.h rather than wait.h

Reviewed-by: alanb
Contributed-by: NJonathan Lu <luchsh@linux.vnet.ibm.com>

src/solaris/native/java/lang/UNIXProcess_md.c

@@ -40,7 +40,7 @@
 #include <stdlib.h>
 #include <sys/types.h>
 #include <ctype.h>
-#include <wait.h>
+#include <sys/wait.h>
 #include <signal.h>
 #include <string.h>
 #include <errno.h>