payloads: Remove/fix trailing whitespace

Change-Id: Idfc54ca0ed53f52ddad61114ec6b05d94dd746c1
Signed-off-by: Martin Roth <martinr@coreboot.org>
Reviewed-on: https://review.coreboot.org/28430
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>

payloads/libpayload/include/queue.h

@@ -95,15 +95,15 @@
 struct name {								\
 	struct type *slh_first;	/* first element */			\
 }
- 
+
 #define	SLIST_HEAD_INITIALIZER(head)					\
 	{ NULL }
- 
+
 #define SLIST_ENTRY(type)						\
 struct {								\
 	struct type *sle_next;	/* next element */			\
 }
- 
+
 /*
  * Singly-linked List access methods.
  */