[clang] [clang][docs] Rename Hexagon HVX option section (PR #195560)

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https://github.com/nataliakokoromyti created https://github.com/llvm/llvm-project/pull/195560

There were two `hexagon` sections in the docs, but the second one was just the hvx flags so I renamed that one to `hexagon hvx`. This seems to be the consensus from #194072.



>From 2d20ed1f70f16e738f73917f0912a0f1702cac17 Mon Sep 17 00:00:00 2001
From: nataliakokoromyti <nataliakokoromyti at gmail.com>
Date: Sun, 3 May 2026 16:34:36 -0700
Subject: [PATCH] rename hexagon hvx docs

---
 clang/include/clang/Options/Options.td | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/clang/include/clang/Options/Options.td b/clang/include/clang/Options/Options.td
index c64ebba6f3dbf..e32956264194b 100644
--- a/clang/include/clang/Options/Options.td
+++ b/clang/include/clang/Options/Options.td
@@ -221,7 +221,7 @@ def m_sparc_Features_Group : OptionGroup<"<sparc features group>">,
 // The features added by this group will not be added to target features.
 // These are explicitly handled.
 def m_hexagon_Features_HVX_Group : OptionGroup<"<hexagon features group>">,
-                                   Group<m_Group>, DocName<"Hexagon">;
+                                   Group<m_Group>, DocName<"Hexagon HVX">;
 def m_m68k_Features_Group: OptionGroup<"<m68k features group>">,
                            Group<m_Group>, DocName<"M68k">;
 def m_mips_Features_Group : OptionGroup<"<mips features group>">,