Fix the ADIOS_USE_{} variable names to use ADIOS2

[anagainaru]

Randomly found this bug when testing the query code.

[vicentebolea]

🤦 haha

Good catch!

[vicentebolea]

In the same topic, there is also a comment which might confuse future devs.

cmake/ADIOSFunctions.cmake:/* CMake Option: ADIOS_USE_${OPT}=OFF */

[vicentebolea]

And an example

cmake/ADIOSFunctions.cmake:/* CMake Option: ADIOS_USE_${OPT}=OFF */
cmake/DetectOptions.cmake:if(ADIOS_USE_Kokkos AND ADIOS_USE_CUDA)
cmake/DetectOptions.cmake:  message(FATAL_ERROR "ADIOS2_USE_Kokkos is incompatible with ADIOS_USE_CUDA")
examples/hello/README.md:1. datamanReader (to be deprecated, ADIOS_USE_DataMan=ON)
examples/hello/README.md:1. hdf5Writer (-DADIOS_USE_HDF5=ON)  

[anagainaru]

Done, I added the other places. You'll need to re-approve :)