x86/resctrl: Remove fflags from struct rdt_resource

x86/resctrl: Remove fflags from struct rdt_resource

The resctrl arch code specifies whether a resource controls a cache or memory
using the fflags field. This field is then used by resctrl to determine which
files should be exposed in the filesystem.

Allowing the architecture to pick this value means the RFTYPE_ flags have to
be in a shared header, and allows an architecture to create a combination that
resctrl does not support.

Remove the fflags field, and pick the value based on the resource id.

Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reviewed-by: Fenghua Yu <fenghuay@nvidia.com>
Reviewed-by: Babu Moger <babu.moger@amd.com>
Tested-by: Shaopeng Tan <tan.shaopeng@jp.fujitsu.com>
Tested-by: Peter Newman <peternewman@google.com>
Tested-by: Amit Singh Tomar <amitsinght@marvell.com> # arm64
Tested-by: Shanker Donthineni <sdonthineni@nvidia.com> # arm64
Tested-by: Babu Moger <babu.moger@amd.com>
Link: https://lore.kernel.org/r/20250311183715.16445-4-james.morse@arm.com