snort-3-cn10k-25.01.0-ubuntu-24.04-devel

bfs: add external buildroot package

Added initial external buildroot package for octeon9
- Added board dir: octeon_cn9k
- Added pre-installed external toolchain configuration
- Added linux kernel path (6.1.x.linux-25.01)
- Added octeon_cn9k_linux.config
- Added octeon_cn9k_defconfig
  -- with DPDK, DAO and grpc enabled
- Added package: marvell-dpdk to point to github sources:
  24.11-release branch
- Used grpc-1.66.1/protobuf-29.3 by patching buildroot

Signed-off-by: Nitin Saxena <nsaxena@marvell.com>
Change-Id: I6e4aaa7b94f9e4f3e694a3aa20048b7f1e490db1
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/dataplane/dpu-offload/+/146158
Tested-by: Jerin Jacob <jerinj@marvell.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>