fix doc typos

doc/crypto/EVP_PKEY_verify.pod

@@ -69,7 +69,7 @@ Verify signature using PKCS#1 and SHA256 digest:
 	/* Error */
 
  /* Perform operation */
- ret = EVP_PKEY_verify(ctx, md, mdlen, sig, siglen);
+ ret = EVP_PKEY_verify(ctx, sig, siglen, md, mdlen);
 
  /* ret == 1 indicates success, 0 verify failure and < 0 for some
   * other error.

doc/crypto/EVP_PKEY_verifyrecover.pod

@@ -74,7 +74,7 @@ Recover digest originally signed using PKCS#1 and SHA256 digest:
 	/* Error */
 
  /* Determine buffer length */
- if (EVP_PKEY_verifyrecover(ctx, rout, &routlen, sig, siglen) <= 0)
+ if (EVP_PKEY_verifyrecover(ctx, NULL, &routlen, sig, siglen) <= 0)
 	/* Error */
 
  rout = OPENSSL_malloc(routlen);