Keyguard: Fix "Show more than a "." when input wrong PIN code" issue

The format string msim_kg_sim_pin_msg_format has one ".", while the
parameter string msg also has one ".".

We will delete "." of the the format string msim_kg_sim_pin_msg_format.

CRs-Fixed: 640322

Change-Id: Ifcef1887db27a3dd47c4e679b5135cf83cf10fe8

Conflicts:
	packages/Keyguard/res/values/strings.xml