Fix compile error

src/duskpsp/asset/assetpbp.h

@@ -12,6 +12,8 @@
 #define ASSET_PBP_SIGNATURE_SIZE 4
 #define ASSET_PBP_SIGNATURE "\0PBP"
 
+#define ASSET_PBP_PATH_MAX FILENAME_MAX
+
 typedef struct {
   char_t signature[ASSET_PBP_SIGNATURE_SIZE];
   uint32_t version;