RDK-Hackathon2025: Port RDK-B on RISC-V JH7110
Reason for change: To add manifest file for risc-v layers.
Test Procedure: Check the meta-cmf-starfive and meta-starfive repo is present.
Risks: None
Signed-off-by:sankar_subramanian@infosys.com

Change-Id: I337df12b662e8c92d805b3ca59c9cf5d2ed958af