**- Why I did it**
- Add as4630_54pe SDK configuration parameters.
**- How I did it**
- Add l3_alpm_enable=2 and ipv6_lpm_128b_enable=1 in hx5-as4630-48x1G+4x25G+2x100G.bcm.
Co-authored-by: derek_sun <derek_sun@edge-core>
Co-authored-by: derek_sun <ecsonic@edge-core.com>