malloc.h: fix codingstyle

- Remove trailing newline
- use void *fn instead of void* fn

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

include/malloc.h

@@ -3,15 +3,12 @@
 
 #include <types.h>
 
-/* Public routines */
-
-void* malloc(size_t);
-void free(void*);
-void* realloc(void*, size_t);
-void* memalign(size_t, size_t);
-void* calloc(size_t, size_t);
+void *malloc(size_t);
+void free(void *);
+void *realloc(void *, size_t);
+void *memalign(size_t, size_t);
+void *calloc(size_t, size_t);
 void malloc_stats(void);
 void *sbrk(ptrdiff_t increment);
 
-#endif
-
+#endif /* __MALLOC_H */