zbar.spec: add dbus-devel dependency

This is needed in order to build ZBar with d-bus support.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

zbar.spec

@@ -10,7 +10,7 @@ Source0:	https://linuxtv.org/downloads/%{name}/%{name}-%{version}.tar.bz2
 BuildRequires:	autoconf automake libtool gettext-devel
 BuildRequires:	qt5-qtbase-devel qt5-qtx11extras-devel
 BuildRequires:	gtk2-devel GraphicsMagick-c++-devel
-BuildRequires:	libv4l-devel libXv-devel xmlto
+BuildRequires:	libv4l-devel libXv-devel xmlto dbus-devel
 
 %description
 A layered bar code scanning and decoding library. Supports EAN, UPC, Code 128,