Renaming python3-nvme to correct python3-libnvme name (Closes: #1032635).

Signed-off-by: Daniel Baumann <daniel@debian.org>

debian/control

@@ -49,7 +49,7 @@ Description: NVMe management library (library)
  .
  This package contains the shared library.
 
-Package: python3-nvme
+Package: python3-libnvme
 Section: python
 Architecture: any
 Depends:
@@ -57,6 +57,10 @@ Depends:
  ${misc:Depends},
  ${python3:Depends},
  ${shlibs:Depends},
+Breaks:
+ python3-nvme,
+Conflicts:
+ python3-nvme,
 Description: NVMe management library (Python)
  NVM Express (NVMe) is a interface specification for accessing non-volatile
  storage media, typically modern solid state drives (SSDs) through PCI Express
@@ -64,3 +68,17 @@ Description: NVMe management library (Python)
  devices.
  .
  This package contains the Python bindings.
+
+Package: python3-nvme
+Section: oldlibs
+Priority: extra
+Architecture: all
+Depends:
+ python3-libnvme,
+ ${misc:Depends},
+Description: NVMe management library (transitional package)
+ Package to ease upgrading from older python3-nvme package to the new
+ python3-libnvme package.
+ .
+ This package can be purged at anytime once the python3-libnvme package has been
+ installed.