There's no need to copy files to the target when stap can take the short
probe directly.
Add more has-package decorators for the kernel source and GCC symlinks.
Remove the test dependencies as it's not a hard dependency.
Change the probe to print a message with some minimal logic, and verify
that the message was correctly constructed in the output.
(From OE-Core rev: 3954dc857df1d2a7e559b4fd357b54f39cf7374a)
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>