HACKATHON-2025: Manifest changes for meta-arm

Reason for change : Deprecated SOC specific layer i.e.meta-raspberrypi
		    Added meta-arm in manifest
Test Procedure : Build image, check sanity,
		 Board boots fine, No core-dumps observed.
Risks: High
Priority: P3
Change-Id: Ie0671b52d55e88f1c45c3f3eef1cb54759a4f9fc
Signed-off-by: Aurobinda Bharat Maharana <aurobindabharatmaharana.n@zilogic.com>