selftests: Add version file to kselftest installation dir

As titled, adding version file to kselftest installation dir, so the user
of the tarball can know which kernel version the tarball belongs to.

Link: https://lore.kernel.org/r/20250610221248.819519-1-1997cui@gmail.com
Signed-off-by: Tianyi Cui <1997cui@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Tianyi Cui 2025-06-10 15:12:07 -07:00 • committed by Shuah Khan
commit cd9f02adca