Staging:netlogic: Correct double assignment in xlr_net.c

This patch removes an unnecessary assignment of variable val.
I have used a coccinelle semantic patch(da.cocci) in order to find this issue.

Signed-off-by: Iulia Manda <iulia.manda21@gmail.com>
Reviewed-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>