[Testing] [ciqlts9_2] add multiarch support

[ciq-kernel-automation]

Summary

This PR has been automatically created after successful completion of all CI stages.

Commit Message(s)

add multiarch support

Signed-off-by: Shreeya Patel <spatel@ciq.com>

Test Results

✅ Build Stage

Architecture	Build Time	Total Time
x86_64	24m 2s	25m 21s
aarch64	12m 40s	13m 52s

• View build logs

✅ Boot Verification

• Status: Passed (both architectures)
• View boot logs

✅ Kernel Selftests

Architecture	Passed	Failed
x86_64	137	26
aarch64	110	24

• View kselftest logs

Test Comparison

    **x86_64:**
    - ✅ Status: Passed - Within acceptable threshold (±3 tests)
    - Compared against: ciqlts9_2
    **aarch64:**
    - ⚠️ Status: Skipped - No baseline available

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