add fpga config file
add fpga_test into sbin
Revert "add fpga_test into sbin"

This reverts commit 8a4eee26de4cf0bd328bb0446bb00429890b6829.
add local_module.mk for fpga_test
add fpag rx multi-cast check
fix ring multi-thread bug
update ring with pthread enable
use pthread_mutex_t instead of sem_t
run rx thread as real_time
use dg_sem instead of system semaphore
fix rx thread priority
move useful header to hdr
add nano sleep when there is not data in rx
dg_sem implement with pthread condition variable
fix dg_sem wait bug
can't use pthread condition wait because of sched issue
fix dg_sem pthread sync bug
add tx retry when fpga is busy
fix rx control bug
use O3 for compile