(RHEL-35890) feat(lsinitrd.sh): look for initrd in /usr/lib/modules/

[pvalena]

Introduce new path for lsinitrd.sh to look into:

/usr/lib/modules/$kver/initramfs.img

Which is valid on all ostree-based systems, and also other image based
systems with pre-generated initramfs.

Ref: https://issues.redhat.com/browse/RHEL-35890

(cherry picked from commit 7c7cdd9317c21b19a0393f5d28d1acb7ee3ff027 from PR#582)

Resolves: RHEL-35890

[github-actions]

Commit validation

Tracker - RHEL-35890

The following commits need an inspection

commit	note
0110f7a - feat(lsinitrd.sh): look for initrd in /usr/lib/modules/	Missing upstream reference ‼️

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🟢 Tracker RHEL-35890 has set desired product: rhel-9.4
🟢 Tracker RHEL-35890 has set desired component: dracut

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[pvalena]

LGTM, verified via upstream PR.