hwrng: octeon - Fix warnings on 32-bit platforms

Use unsigned long instead of u64 to silence compile warnings on
32-bit platforms.  Also remove the __force bit which seems no
longer needed with a current sparse.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/char/hw_random/octeon-rng.c

@@ -33,7 +33,7 @@ static int octeon_rng_init(struct hwrng *rng)
 	ctl.u64 = 0;
 	ctl.s.ent_en = 1; /* Enable the entropy source.  */
 	ctl.s.rng_en = 1; /* Enable the RNG hardware.  */
-	cvmx_write_csr((__force u64)p->control_status, ctl.u64);
+	cvmx_write_csr((unsigned long)p->control_status, ctl.u64);
 	return 0;
 }
 
@@ -44,14 +44,14 @@ static void octeon_rng_cleanup(struct hwrng *rng)
 
 	ctl.u64 = 0;
 	/* Disable everything.  */
-	cvmx_write_csr((__force u64)p->control_status, ctl.u64);
+	cvmx_write_csr((unsigned long)p->control_status, ctl.u64);
 }
 
 static int octeon_rng_data_read(struct hwrng *rng, u32 *data)
 {
 	struct octeon_rng *p = container_of(rng, struct octeon_rng, ops);
 
-	*data = cvmx_read64_uint32((__force u64)p->result);
+	*data = cvmx_read64_uint32((unsigned long)p->result);
 	return sizeof(u32);
 }