Fix the following CIS Benchmark network configurations:
- 3.3.4 Ensure broadcast ICMP requests are ignored
- 3.3.8 Ensure source routed packets are not accepted
- 3.3.10 Ensure TCP SYN Cookies is enabled
Testing:
- Build successful
- SX and DX deployment successful
- Run CIS Tenable-IO scan with no errors
Story: 2011210
Task: 51629
Change-Id: I3acf7a977204981dc160ef82d7092397fce151f9
Signed-off-by: Mohammad Issa <mohammad.issa@windriver.com>