gdb.rocm/watchpoint-basic: add XFAILs for known configurations

Some of the tests in gdb.rom/watchpoint-basic are destined to fail
due to a problem in KFD.  This patch marks those tests as such on
configurations that this can happen.

Reviewed-by: Tankut Baris Aktemur <tankutbaris.aktemur@amd.com>
Approved-by: Luis Machado <luis.machado.foss@gmail.com>