samples/net/promiscuous_mode the include file is not there

[hakehuang]

Describe the bug
there is no net/tcp.h file to include

To Reproduce
Steps to reproduce the behavior:

1. mkdir build; cd build
2. cmake -DBOARD=frdm_k64f ..
3. make
4. See error

Expected behavior
sample need update

Impact
sample

Screenshots or console output

/build/src/workspace/frdmk64f_master/samples/net/promiscuous_mode/src/main.c:17:21: fatal error: net/tcp.h: No such file or directory

 #include <net/tcp.h>

                     ^

compilation terminated.

CMakeFiles/app.dir/build.make:62: recipe for target 'CMakeFiles/app.dir/src/main.c.obj' failed

Environment (please complete the following information):

• OS: ( Linux)
• Toolchain ( Zephyr SDK)
• Commit SHA or Version used: v1.14.0_rc2

[rveerama1]

ebce560 already merged.