FPGA: Fix namespace of deivce_ptr and host_ptr

[steffenlarsen]

Existing Sample Changes

Description

The device_ptr and host_ptr aliases in DPC++ is from the sycl_ext_intel_usm_address_spaces and as such is under the sycl::ext::intel namespace, rather than the sycl namespace. This commit fixes the namespaces of all uses of these aliases.

Replaces https://github.com/oneapi-src/oneAPI-samples/pull/2288.

External Dependencies

None.

Type of change

• [X] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Implement fixes for ONSAM Jiras

How Has This Been Tested?

Following the build instructions in each of the respective sample directories.

• [X] Command Line
• [ ] oneapi-cli
• [ ] Visual Studio
• [ ] Eclipse IDE
• [ ] VSCode
• [ ] When compiling the compliler flag "-Wall -Wformat-security -Werror=format-security" was used

[yuguen]

What version of the compiler are you using to test this? Internal regression tests are passing with 2024.2

[steffenlarsen]

This is to adjust for upcoming releases, including current https://github.com/intel/llvm. Note that sycl::device_ptr and sycl::host_ptr were deprecated in 2024.2.

[yuguen]

Ok - thanks I'll keep your PR opened for now until the FPGA compiler integrates this upstream change - I'll merge your PR then

[yuguen]

Some have been addressed (but not all) I'm still keeping this PR opened as I don't have a way to test it now, and we are close to the 2024.2 release. This will get merged in the 2025.0 release

[yuguen]

All of these should have been addressed now through other PRs that we were able to validate along then way. Closing.