Switch from <sys/endian.h> or <machine/endian.h> to the new,

being-standardized <endian.h>
ok deraadt@ millert@ beck@

src/lib/libc/hash/rmd160.c

@@ -26,9 +26,9 @@
  * RSA Laboratories, CryptoBytes, Volume 3, Number 2, Autumn 1997,
  * ftp://ftp.rsasecurity.com/pub/cryptobytes/crypto3n2.pdf
  */
-#include <string.h>
 #include <sys/types.h>
-#include <sys/endian.h>
+#include <endian.h>
+#include <string.h>
 #include <rmd160.h>
 
 #define PUT_64BIT_LE(cp, value) do {                                    \