fix: Patch freertos_plus_tcp in VAD example

If a newer freertos-kernel version is used then the build
fails because of the temporary solution in  freertos-plus-tcp
repository. Added a patch file as a workaround until the
fetched amazon-freertos repo's version is updated.

Change-Id: I0995cf0eeb48d1f54e971d3838f437988466af5a
Signed-off-by: Bence Balogh <bence.balogh@arm.com>
2 files changed