[PATCH v2] selftests/rseq: Add config fragment

[Mark Brown]

Currently we do not provide a config fragment for the rseq selftests but
there are a couple of configuration options which are required for
running them:

 - CONFIG_RSEQ is required for obvious reasons, it is enabled by default
   but it doesn't hurt to specify it in case the user is usinsg a
   defconfig that disables it.

 - CONFIG_RSEQ_SLICE_EXTENSION is tested by the slice_test test, the
   test will fail without it.

Add a configuration fragment which enables these options, helping
encourage CI systems and people doing manual testing to run the tests
with all the features.  We also enable CONFIG_EXPERT since it is a
dependency for slice extension.

Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
Changes in v2:
- Remove the debug options since Linus has indicated that he wants them
  removed entirely: https://lore.kernel.org/linux-arm-kernel/CAHk-=wjsEqWJxXArS-P5+ksSY2Apaox8u6FtUrtyWSBEOL4Q2Q@xxxxxxxxxxxxxx/
- Link to v1: https://patch.msgid.link/20260424-selftests-rseq-config-fragment-v1-1-fcf60116e690@xxxxxxxxxx
---
 tools/testing/selftests/rseq/config | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/selftests/rseq/config b/tools/testing/selftests/rseq/config
new file mode 100644
index 000000000000..a64608043ace
--- /dev/null
+++ b/tools/testing/selftests/rseq/config
@@ -0,0 +1,3 @@
+CONFIG_EXPERT=y
+CONFIG_RSEQ=y
+CONFIG_RSEQ_SLICE_EXTENSION=y

---
base-commit: 2e68039281932e6dc37718a1ea7cbb8e2cda42e6
change-id: 20260423-selftests-rseq-config-fragment-65f09caf0276

Best regards,
--  
Mark Brown <broonie@xxxxxxxxxx>