clean: add header guards for private headers

Author: lws-team

lib/misc/cache-ttl/private-lib-misc-cache-ttl.h

@@ -22,6 +22,9 @@
  * IN THE SOFTWARE.
  */
 
+#if !defined(__MISC_CACHE_TTL_PRIVATE_LIB_MISC_CACHE_TTL__)
+#define __MISC_CACHE_TTL_PRIVATE_LIB_MISC_CACHE_TTL__
+
 #define lwsl_cache lwsl_debug
 #define lwsl_hexdump_cache lwsl_hexdump_debug
 
@@ -96,3 +99,6 @@ lws_cache_clear_matches(lws_dll2_owner_t *results_owner);
 
 void
 lws_cache_schedule(struct lws_cache_ttl_lru *cache, sul_cb_t cb, lws_usec_t e);
+
+#endif
+

lib/misc/dlo/private-lib-drivers-display-dlo.h

@@ -1,3 +1,6 @@
+#if !defined(__MISC_DLO_PRIVATE_LIB_DRIVERS_DISPLAY_DLO__)
+#define __MISC_DLO_PRIVATE_LIB_DRIVERS_DISPLAY_DLO__
+
 enum {
 	MCUFO_MAGIC			= 0,
 	MCUFO_FLAGS_VER			= 4,
@@ -55,3 +58,5 @@ lws_lhp_ss_html_parse_from_lhp(lhp_ctx_t *lhp);
 void
 lws_lhp_image_dimensions_cb(lws_sorted_usec_list_t *sul);
 
+#endif
+