riscv: fix IS_IN_DEPEND_VECTOR range check

riscv: fix IS_IN_DEPEND_VECTOR range check

The macro checked (ZVX_MIN >= offset) which is equivalent to
(offset <= ZVX_MIN), making it true for offsets 0-15 instead of
the intended range [ZVX_MIN, ZVX_MAX] = [15, 23].

The practical effect in hwprobe_to_cap() was inverted:
- Scalar extensions (ZBA..ZKT, offsets 0-14) were incorrectly
  treated as vector-dependent and suppressed when VECTOR_CAPABLE
  was false, preventing their detection via hwprobe.
- Vector extensions ZVBC..ZVKSH (offsets 16-23) were not treated
  as vector-dependent, allowing them to be enabled via hwprobe
  even when the V extension was absent.

Fix by changing >= to <= so the macro correctly tests whether
offset falls in [ZVX_MIN, ZVX_MAX].

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.foundation>
MergeDate: Thu Apr 16 17:03:40 2026
(Merged from https://github.com/openssl/openssl/pull/30713)