packaging: add boost-python dependency

Although ceph-mgr isn't packaged yet, builders
use these files to cue installation of dependencies.

Signed-off-by: John Spray <john.spray@redhat.com>

ceph.spec.in

@@ -90,6 +90,7 @@ BuildRequires:	selinux-policy-devel
 BuildRequires:	/usr/share/selinux/devel/policyhelp
 %endif
 BuildRequires:	boost-devel
+BuildRequires:	boost-python
 BuildRequires:  cmake
 BuildRequires:	cryptsetup
 BuildRequires:	fuse-devel

debian/control

@@ -34,6 +34,7 @@ Build-Depends: btrfs-tools,
 	       libboost-regex-dev,
 	       libboost-random-dev,
                libboost-iostreams-dev (>= 1.42),
+               libboost-python-dev,
                libcurl4-gnutls-dev,
                libexpat1-dev,
                libfcgi-dev,