Enable to tui for perf

[rlmenge]

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• The toolchain has been rebuilt successfully (or no changes were made to it)
• The toolchain/worker package manifests are up-to-date
• Any updated packages successfully build (or no packages were changed)
• Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• All package sources are available
• cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• LICENSE-MAP files are up-to-date (./LICENSES-AND-NOTICES/SPECS/data/licenses.json, ./LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md, ./LICENSES-AND-NOTICES/SPECS/LICENSE-EXCEPTIONS.PHOTON)
• All source files have up-to-date hashes in the *.signatures.json files
• sudo make go-tidy-all and sudo make go-test-coverage pass
• Documentation has been updated to match any changes to the build system
• Ready to merge

---

Summary

Adding slang-devel to kernel spec, enabling perf tui

Perf's Makefile has a slang-devel check, which enables tui when slang is detected. (https://github.com/microsoft/CBL-Mariner-Linux-Kernel/blob/rolling-lts/mariner-3/6.6.78.1/tools/perf/Makefile.config#L765). Adding this package at built time will allow
perf --tui support

Change Log

• Add slang-devel as a BR to enable tui for perf

Does this affect the toolchain?

YES

Associated issues

• https://microsoft.visualstudio.com/OS/_workitems/edit/53509572

Test Methodology

Buddy Build
Validate fix

sudo tdnf install -y  kernel-tools-6.6.78.1-2.azl3.x86_64.rpm
# May need sudo sysctl -w kernel.perf_event_paranoid=-1
perf record -e cycles -a -- ls
# perf report will default to tui if available otherwise will print data
perf report

Example without tui

Example of tui:

Smoke Tests
AMD

*** Smoke Testing Kernel 6.6.78.1-2.azl3 (est. < 1 min) ***
PASS: Kernel version matches the running kernel version.
PASS: eth0 interface is up.
PASS: iptables service is running.
Boot times:
Startup finished in 1.884s (kernel) + 1.347s (initrd) + 8.864s (userspace) = 12.095s 
graphical.target reached after 8.465s in userspace.
Kernel size:
-rw------- 1 root root 15044608 Mar  5 02:13 /boot/vmlinuz-6.6.78.1-2.azl3
30916	/lib/modules/6.6.78.1-2.azl3
kernel memory:
MemTotal:       32874296 kB
MemFree:        32515432 kB
MemAvailable:   32338676 kB
Total memory:
               total        used        free      shared  buff/cache   available
Mem:           32103         523       31753           8         123       31580
Swap:              0           0           0

ARM

*** Smoke Testing Kernel 6.6.78.1-2.azl3 (est. < 1 min) ***
PASS: Kernel version matches the running kernel version.
PASS: eth0 interface is up.
PASS: iptables service is running.
Boot times:
Startup finished in 2.225s (kernel) + 1.410s (initrd) + 5.308s (userspace) = 8.944s 
graphical.target reached after 5.051s in userspace.
Kernel size:
-rw------- 1 root root 48718336 Mar  5 02:48 /boot/vmlinuz-6.6.78.1-2.azl3
49204	/lib/modules/6.6.78.1-2.azl3
kernel memory:
MemTotal:       395447188 kB
MemFree:        392640772 kB
MemAvailable:   391088544 kB
Total memory:
               total        used        free      shared  buff/cache   available
Mem:          386178        4256      383438           1         172      381922
Swap:              0           0           0

[AZaugg]

Looks good!