pulseaudio: remove spurious cd in do_compile_prepend
This prepend was cding to ${S}, which then breaks base_do_compile as it assumes
it's in ${B}. The cd is pointless as all of the operations use absolute paths,
so remove it.
The result of this was that base_do_compile was failing to find the makefiles,
so the compilation happened in do_install.
Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
