package/python-rtslib-fb: update URL to the open-iscsi organization

Also add a comment to indicate that python-configshell-fb and
targetcli-fb should be bumped every time python-rtslib-fb is bumped
because upstream usually upgrades all of these packages at the same
time.

Another comment warns that switching this package to PyPI would make us
miss new versions of python-rtslib-fb.

Signed-off-by: Christophe Vu-Brugier <cvubrugier@fastmail.fm>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/python-rtslib-fb/Config.in

@@ -6,4 +6,4 @@ config BR2_PACKAGE_PYTHON_RTSLIB_FB
 	  the LIO generic SCSI target, present in 3.x Linux kernel
 	  versions.
 
-	  https://github.com/agrover/rtslib-fb
+	  https://github.com/open-iscsi/rtslib-fb

package/python-rtslib-fb/python-rtslib-fb.mk

@@ -4,8 +4,11 @@
 #
 ################################################################################
 
+# When upgrading the version, be sure to also upgrade
+# python-configshell-fb and targetcli-fb at the same time.
 PYTHON_RTSLIB_FB_VERSION = v2.1.fb57
-PYTHON_RTSLIB_FB_SITE = $(call github,agrover,rtslib-fb,$(PYTHON_RTSLIB_FB_VERSION))
+# Do not switch site to PyPI: it does not contain the latest version.
+PYTHON_RTSLIB_FB_SITE = $(call github,open-iscsi,rtslib-fb,$(PYTHON_RTSLIB_FB_VERSION))
 PYTHON_RTSLIB_FB_LICENSE = Apache-2.0
 PYTHON_RTSLIB_FB_LICENSE_FILES = COPYING
 PYTHON_RTSLIB_FB_SETUP_TYPE = setuptools