arm: Fix some style issues in stacktrace.cc.

De-indent the ArmISA namespace, and wrap some overly long lines.

Change-Id: Idc02b025bdfda483ddbd27d662e2314a5cbcb23c
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18370
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
1 file changed