ios framework: don't disable opencv_world in dynamic framework

platforms/ios/build_framework.py

@@ -135,7 +135,7 @@ class Builder:
         ] if self.dynamic else [])
 
         if len(self.exclude) > 0:
-            args += ["-DBUILD_opencv_world=OFF"]
+            args += ["-DBUILD_opencv_world=OFF"] if not self.dynamic else []
             args += ["-DBUILD_opencv_%s=OFF" % m for m in self.exclude]
 
         return args