message: cmake: support CPU_DISPATCH=ALL, fix misused CPU_DISPATCH
  CPU_DISPATCH_FINAL should be used for filtering
diff: @@ -380,6 +380,10 @@ if(CV_DISABLE_OPTIMIZATION)
  set(CPU_DISPATCH_REQUIRE "")
  endif()
  +if("x${CPU_DISPATCH}" STREQUAL "xALL")
  + set(CPU_DISPATCH "${CPU_KNOWN_OPTIMIZATIONS}")
  +endif()
  +
  macro(ocv_check_compiler_optimization OPT)
  if(NOT DEFINED CPU_${OPT}_SUPPORTED)
  if((DEFINED CPU_${OPT}_FLAGS_ON AND NOT "x${CPU_${OPT}_FLAGS_ON}" STREQUAL "x") OR CPU_${OPT}_TEST_FILE)
  @@ -854,19 +858,19 @@ macro(__ocv_add_dispatched_file filename target_src_var src_directory dst_direct
  file(WRITE "${__file}" "${__codestr}")
  endif()
  - if(";${CPU_DISPATCH};" MATCHES "${OPT}" OR __CPU_DISPATCH_INCLUDE_ALL)
  + if(";${CPU_DISPATCH_FINAL};" MATCHES "${OPT}" OR __CPU_DISPATCH_INCLUDE_ALL)
  if(EXISTS "${src_directory}/${filename}.${OPT_LOWER}.cpp")
  message(STATUS "Using overrided ${OPT} source: ${src_directory}/${filename}.${OPT_LOWER}.cpp")
  else()
  list(APPEND ${target_src_var} "${__file}")
  endif()
  - endif()
  set(__declarations_str "${__declarations_str}
  #define CV_CPU_DISPATCH_MODE ${OPT}
  #include \"opencv2/core/private/cv_cpu_include_simd_declarations.hpp\"
  ")
  set(__dispatch_modes "${OPT}, ${__dispatch_modes}")
  + endif()
  endforeach()
  set(__declarations_str "${__declarations_str}
  