linux-timesys (3.0.15): Bump SRCREV_pcl052 to 5e9d9a5

The following changes have been made in this version of the kernel:

* Fix for ethernet, which was previously not working.

Signed-off-by: Anthony Felice <tony.felice@timesys.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>