Add control.amd64 and control.i386. package building script will choose...

Add control.amd64 and control.i386. package building script will choose appropriate one  based on current system.

debian/control.amd64

+Source: sflphone
+Maintainer: SavoirFaireLinux Inc <yun.liu@savoirfairelinux.com>
+Section: gnome
+Priority: optional
+Build-Depends: debhelper (>= 5)
+Standards-Version: 3.7.3
+
+Package: sflphone
+Priority: optional
+Architecture: amd64
+Depends: libgcc1 , libsamplerate0 (>=0.1.2) , libdbus-glib-1-2 (>= 0.73), libexpat1 , libgtk2.0-0 , libc6 (>= 2.3.6-6) , libglib2.0-0 (>= 2.12.0) ,  libcommoncpp2-1.6-0  , sflphone-iax2, libgsm1 (>=1.0.10) , libspeex1 (>=1.1.12) , libdbus-1-3, libdbus-glib-1-2, dbus-c++-1 (>=0.5.0) , libsexy2 (>=0.1.11), libcppunit-1.12-0, libasound2 (>= 1.0), libpulse0 (>= 0.9.6), libccrtp1-1.6-0, libnotify1 (>= 0.4), libsexy2 (>= 0.1), perl (>=5.5.8) 
+Homepage: http://www.sflphone.org
+Description: SIP and IAX2 compatible softphone
+ SFLphone is meant to be a robust enterprise-class desktop phone.
+ SFLphone is released under the GNU General Public License.
+ SFLphone is being developed by the global community, and maintained by
+ Savoir-faire Linux, a Montreal, Quebec, Canada-based Linux consulting company.