firmware: arm_ffa: Tie FF-A version checks to specific features

firmware: arm_ffa: Tie FF-A version checks to specific features

The FF-A driver currently performs loose comparisons when checking the
supported FF-A feature, which can inadvertently treat future or
intermediate revisions as compatible.

Replace generic `version {>,<} FFA_VERSION_1_*` pattern checks with
feature-specific macros that clearly express which functionality
depends on FF-A versioning.

This improves readability and future maintainability by tying each
feature (e.g. GET_COUNT_ONLY, size/UUID/exec state in responses) to
explicit version requirements instead of relying on generic version
comparisons. This improves robustness and clarity as the FF-A
specification evolves.

No functional change, only improves code readability.

Message-Id: <20251016094111.946236-1-sudeep.holla@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>