bankd: move bank_id / num_slots from g_bankd to remsim_srv_conn

... and make num_slots configurable via command line argument

Change-Id: Id8f15085b397186d3470f4d943979857b6811a52
diff --git a/doc/manuals/chapters/remsim-bankd.adoc b/doc/manuals/chapters/remsim-bankd.adoc
index fa8ce38..7e83621 100644
--- a/doc/manuals/chapters/remsim-bankd.adoc
+++ b/doc/manuals/chapters/remsim-bankd.adoc
@@ -60,7 +60,7 @@
 
 ==== SYNOPSIS
 
-*remsim-bankd* [-h] [-i A.B.C.D] [-p <1-65535>] [-b <1-65535>] [-I A.B.C.D] [-P <1-65535> ]
+*remsim-bankd* [-h] [-i A.B.C.D] [-p <1-65535>] [-b <1-65535>] [-n <1-65535>] [-I A.B.C.D] [-P <1-65535> ]
 
 ==== OPTIONS
 
@@ -75,6 +75,8 @@
 *-b, --bank-id <1-65535>*::
   Specify the numeric bank identifier of the SIM bank this bankd instance
   operates.  Must be unique among all banks connecting to the same remsim-server.
+*-n, --num-slots <1-65535>*::
+  Specify the number of slots that this bankd handles.
 *-I, --bind-IP A.B.C.D*::
   Specify the local IP address to which the socket for incoming connections
   from remsim-clients is bound to.