Update the translation of .../rust/arch-support.rst into Chinese.

Update the translation through commit ccb8ce526807
("ARM: 9441/1: rust: Enable Rust support for ARMv7")

Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Signed-off-by: Ben Guo <ben.guo@openatom.club>
---
 Documentation/translations/zh_CN/rust/arch-support.rst | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/Documentation/translations/zh_CN/rust/arch-support.rst b/Documentation/translations/zh_CN/rust/arch-support.rst
index abd708d48f8..f5ae44588a5 100644
--- a/Documentation/translations/zh_CN/rust/arch-support.rst
+++ b/Documentation/translations/zh_CN/rust/arch-support.rst
@@ -19,9 +19,10 @@
 =============  ================  ==============================================
 架构           支持水平           限制因素
 =============  ================  ==============================================
-``arm64``      Maintained        只有小端序
+``arm``        Maintained        仅 ARMv7 小端序。
+``arm64``      Maintained        仅小端序。
 ``loongarch``  Maintained        \-
-``riscv``      Maintained        只有 ``riscv64``
-``um``         Maintained        只有 ``x86_64``
-``x86``        Maintained        只有 ``x86_64``
+``riscv``      Maintained        仅 ``riscv64``，且仅限 LLVM/Clang。
+``um``         Maintained        \-
+``x86``        Maintained        仅 ``x86_64``。
 =============  ================  ==============================================
-- 
2.53.0