staging: rdma: ehca: Added a blank line

Added a blank line after declarations to remove the coding
style error detected by the checkpatch.pl.

WARNING: Missing a blank line after declarations

Signed-off-by: Anjali Menon <cse.anjalimenon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>