Fix modules/ typos

Found using `codespell -q 3 -S ./3rdparty -L activ,amin,ang,atleast,childs,dof,endwhile,halfs,hist,iff,nd,od,uint`

backporting of commit: ec43292e1e

modules/core/src/ocl.cpp

@@ -5759,7 +5759,7 @@ public:
 
 static OpenCLAllocator* getOpenCLAllocator_() // call once guarantee
 {
-    static OpenCLAllocator* g_allocator = new OpenCLAllocator(); // avoid destrutor call (using of this object is too wide)
+    static OpenCLAllocator* g_allocator = new OpenCLAllocator(); // avoid destructor call (using of this object is too wide)
     g_isOpenCVActivated = true;
     return g_allocator;
 }