[llvm] [AVR] Fix a bug of selecting inline assembly operand (PR #195066)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-aarch64-global-isel` running on `linaro-clang-aarch64-global-isel` while building `llvm` at step 7 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/125/builds/14457

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 7 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'LLVM :: tools/dsymutil/debug-map-parsing.test' FAILED ********************
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 1
/home/tcwg-buildbot/worker/clang-aarch64-global-isel/stage1/bin/dsymutil --linker classic -dump-debug-map -oso-prepend-path=/home/tcwg-buildbot/worker/clang-aarch64-global-isel/llvm/llvm/test/tools/dsymutil /home/tcwg-buildbot/worker/clang-aarch64-global-isel/llvm/llvm/test/tools/dsymutil/Inputs/basic.macho.x86_64 | /home/tcwg-buildbot/worker/clang-aarch64-global-isel/stage1/bin/FileCheck /home/tcwg-buildbot/worker/clang-aarch64-global-isel/llvm/llvm/test/tools/dsymutil/debug-map-parsing.test
# executed command: /home/tcwg-buildbot/worker/clang-aarch64-global-isel/stage1/bin/dsymutil --linker classic -dump-debug-map -oso-prepend-path=/home/tcwg-buildbot/worker/clang-aarch64-global-isel/llvm/llvm/test/tools/dsymutil /home/tcwg-buildbot/worker/clang-aarch64-global-isel/llvm/llvm/test/tools/dsymutil/Inputs/basic.macho.x86_64
# note: command had no output on stdout or stderr
# error: command failed with exit status: 1
# executed command: /home/tcwg-buildbot/worker/clang-aarch64-global-isel/stage1/bin/FileCheck /home/tcwg-buildbot/worker/clang-aarch64-global-isel/llvm/llvm/test/tools/dsymutil/debug-map-parsing.test
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  /home/tcwg-buildbot/worker/clang-aarch64-global-isel/stage1/bin/FileCheck /home/tcwg-buildbot/worker/clang-aarch64-global-isel/llvm/llvm/test/tools/dsymutil/debug-map-parsing.test
# `-----------------------------
# error: command failed with exit status: 2

--

********************


```

</details>

https://github.com/llvm/llvm-project/pull/195066