pkg/kamailio/deb: append pkg-config as Build-Depends

pkg/kamailio/deb/debian/control

@@ -40,6 +40,7 @@ Build-Depends: bison,
                libxml2-dev,
                libxmlrpc-c3-dev,
                openssl,
+               pkg-config,
                python,
                python-dev,
                unixodbc-dev,

pkg/kamailio/deb/jessie/control

@@ -39,6 +39,7 @@ Build-Depends: bison,
                libval-dev,
                libxml2-dev,
                openssl,
+               pkg-config,
                python,
                python-dev,
                unixodbc-dev,

pkg/kamailio/deb/precise/control

@@ -38,6 +38,7 @@ Build-Depends: bison,
                libunistring-dev,
                libxml2-dev,
                openssl,
+               pkg-config,
                python,
                python-dev,
                unixodbc-dev,

pkg/kamailio/deb/squeeze/control

@@ -33,6 +33,7 @@ Build-Depends: bison,
                libxml2-dev,
                libxmlrpc-c3-dev,
                openssl,
+               pkg-config,
                python,
                python-dev,
                unixodbc-dev,

pkg/kamailio/deb/wheezy/control

@@ -37,6 +37,7 @@ Build-Depends: bison,
                libunistring-dev,
                libxml2-dev,
                openssl,
+               pkg-config,
                python,
                python-dev,
                unixodbc-dev,