MINOR: samples: rename some struct member from "smp" to "data"

This members contains data and not sample.
diff --git a/include/proto/map.h b/include/proto/map.h
index 21ff57c..a63bc85 100644
--- a/include/proto/map.h
+++ b/include/proto/map.h
@@ -25,10 +25,10 @@
 #include <types/map.h>
 
 /* maps output sample parser */
-int map_parse_ip(const char *text, struct sample_data *smp);
-int map_parse_ip6(const char *text, struct sample_data *smp);
-int map_parse_str(const char *text, struct sample_data *smp);
-int map_parse_int(const char *text, struct sample_data *smp);
+int map_parse_ip(const char *text, struct sample_data *data);
+int map_parse_ip6(const char *text, struct sample_data *data);
+int map_parse_str(const char *text, struct sample_data *data);
+int map_parse_int(const char *text, struct sample_data *data);
 
 struct map_reference *map_get_reference(const char *reference);
 
diff --git a/include/types/pattern.h b/include/types/pattern.h
index 86d4bc8..a71c343 100644
--- a/include/types/pattern.h
+++ b/include/types/pattern.h
@@ -129,7 +129,7 @@
  * "sample" with a tree entry. It is used with maps.
  */
 struct pattern_tree {
-	struct sample_data *smp;
+	struct sample_data *data;
 	struct pat_ref_elt *ref;
 	struct ebmb_node node;
 };
@@ -168,7 +168,7 @@
 	} ptr;                          /* indirect values, allocated */
 	int len;                        /* data length when required  */
 	int sflags;                     /* flags relative to the storage method. */
-	struct sample_data *smp;        /* used to store a pointer to sample value associated
+	struct sample_data *data;       /* used to store a pointer to sample value associated
 	                                   with the match. It is used with maps */
 	struct pat_ref_elt *ref;
 };
@@ -212,7 +212,7 @@
 /* This struct contain a list of pattern expr */
 struct pattern_head {
 	int (*parse)(const char *text, struct pattern *pattern, int flags, char **err);
-	int (*parse_smp)(const char *text, struct sample_data *smp);
+	int (*parse_smp)(const char *text, struct sample_data *data);
 	int (*index)(struct pattern_expr *, struct pattern *, char **);
 	void (*delete)(struct pattern_expr *, struct pat_ref_elt *);
 	void (*prune)(struct pattern_expr *);