[SYCL][E2E] Disable USM tests on HIP because they randomly fail (#15913)

Different tests randomly fail, so disabling the ones that happen to fail
isn't productive. Just disable them all. I'll ping HIP people on the GH
[issue](#15648) to look into this
ASAP.

Examples:
[one](https://github.com/intel/llvm/actions/runs/11571336819/job/32209524859),
[two](https://github.com/intel/llvm/actions/runs/11555099026/job/32160351729)

Signed-off-by: Sarnie, Nick <[email protected]>

Author: sarnex

sycl/test-e2e/USM/lit.local.cfg

@@ -0,0 +1,4 @@
+import platform
+
+# https://github.com/intel/llvm/issues/15648
+config.unsupported_features += ['hip']