sparc64: Add SHA1 driver making use of the 'sha1' instruction.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>

arch/sparc/lib/ksyms.c

@@ -134,6 +134,10 @@ EXPORT_SYMBOL(copy_user_page);
 void VISenter(void);
 EXPORT_SYMBOL(VISenter);
 
+/* CRYPTO code needs this */
+void VISenterhalf(void);
+EXPORT_SYMBOL(VISenterhalf);
+
 extern void xor_vis_2(unsigned long, unsigned long *, unsigned long *);
 extern void xor_vis_3(unsigned long, unsigned long *, unsigned long *,
 		unsigned long *);