Add additional dependencies for shlibafsrpc

Add additional dependencies for shlibafsrpc

fsint and rxstat need to be build before shlibafsrpc, so add them
to the dependencies list.

Reviewed-on: http://gerrit.openafs.org/2755
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>
(cherry picked from commit a4ec68691869deaf12a6fe405394bba2c9003fb9)

Change-Id: I5528390faf2c0ff9c85505673f4317b0c3900e0e
Reviewed-on: http://gerrit.openafs.org/4001
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: Derrick Brashear <shadow@dementia.org>