This commit updates the spidev_test application from Linux kernel upstream
at /tools/spi/spidev_test.c adding support to new features
commit: 9006a7b3220e7293ef8bc1ac9bba6c54411051c1
https://jira.digi.com/browse/DEL-4358
Signed-off-by: Arturo Buzarra <arturo.buzarra@digi.com>