include: u-boot: Remove duplicate newlines

Drop all duplicate newlines. No functional change.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
diff --git a/include/u-boot/sha512.h b/include/u-boot/sha512.h
index 90bd96a..83c2119 100644
--- a/include/u-boot/sha512.h
+++ b/include/u-boot/sha512.h
@@ -36,5 +36,4 @@
 void sha384_csum_wd(const unsigned char *input, unsigned int ilen,
 		unsigned char *output, unsigned int chunk_sz);
 
-
 #endif /* _SHA512_H */
diff --git a/include/u-boot/zlib.h b/include/u-boot/zlib.h
index ee19f46..dac5654 100644
--- a/include/u-boot/zlib.h
+++ b/include/u-boot/zlib.h
@@ -36,7 +36,6 @@
   Jean-loup Gailly        Mark Adler
   jloup@gzip.org          madler@alumni.caltech.edu
 
-
   The data format used by the zlib library is described by RFCs (Request for
   Comments) 1950 to 1952 in the files http://www.ietf.org/rfc/rfc1950.txt
   (zlib format), rfc1951.txt (deflate format) and rfc1952.txt (gzip format).
@@ -547,7 +546,6 @@
 ZEXTERN int ZEXPORT deflateCopy OF((z_streamp dest,
 			z_streamp source));
 
-
 ZEXTERN int ZEXPORT inflateInit_ OF((z_streamp strm,
 			int stream_size));
 ZEXTERN int ZEXPORT inflate OF((z_streamp strm, int flush));