Remove trailing whitespace

Trailing white spaces causing check_files.py to fail

Signed-off-by: Joe Subbiani <joe.subbiani@arm.com>
diff --git a/library/common.h b/library/common.h
index 56514b3..b6b7d01 100644
--- a/library/common.h
+++ b/library/common.h
@@ -67,8 +67,8 @@
 #define MBEDTLS_ALLOW_PRIVATE_ACCESS
 
 /** Byte Reading Macros
- * 
- * To tidy up code and save horizontal and vertical space, use byte 
+ *
+ * To tidy up code and save horizontal and vertical space, use byte
  * reading macros to cast
  */
 #define BYTE_0( x ) ( (uint8_t) ( ( x ) & 0xff ) )
@@ -122,7 +122,7 @@
 } while( 0 )
 #endif
 
-/** 
+/**
  * 32-bit integer conversion from bytes (little endian)
  */
 #define BYTES_TO_U32_LE( data, offset )                         \