detect: allow longer buffer names

To support hook based buffer names.

src/detect-engine.c

@@ -1023,7 +1023,7 @@ static void DetectBufferTypeFree(void)
 #endif
 static int DetectBufferTypeAdd(const char *string)
 {
-    BUG_ON(string == NULL || strlen(string) >= 32);
+    BUG_ON(string == NULL || strlen(string) >= 64);
 
     DetectBufferType *map = SCCalloc(1, sizeof(*map));
     if (map == NULL)

src/detect.h

@@ -453,7 +453,7 @@ typedef struct DetectEngineAppInspectionEngine_ {
 } DetectEngineAppInspectionEngine;
 
 typedef struct DetectBufferType_ {
-    char name[32];
+    char name[64];
     char description[128];
     int id;
     int parent_id;