Add libblockdev package version 2.28 (#4619)

* libblockdev: Add package version 2.28

- Disable conditional build with 'doc' & 'vdo'
- Remove build conditionals on python2

* libblockdev: cgmanifest add package entry

* libblockdev: Correct Source URL.

* libblockdev: Correct cgmanifest entry for downloadUrl

* libblockdev: licenses add package entry

* libblockdev: cgmanifest fix lexical position of package entry

* libblockdev: update license string in spec

SPECS-EXTENDED/libblockdev/libblockdev.signatures.json

@@ -0,0 +1,5 @@
+{
+ "Signatures": {
+  "libblockdev-2.28.tar.gz": "82c9c841e28a74fecadedebfae6a772df623cecdf652e5376650fa26da5b7df4"
+ }
+}

SPECS/LICENSES-AND-NOTICES/data/licenses.json

@@ -546,6 +546,7 @@
                 "libasyncns",
                 "libatasmart",
                 "libavc1394",
+                "libblockdev",
                 "libbpf",
                 "libbsd",
                 "libburn",

cgmanifest.json

@@ -8346,6 +8346,16 @@
         }
       }
     },
+    {
+      "component": {
+        "type": "other",
+        "other": {
+          "name": "libblockdev",
+          "version": "2.28",
+          "downloadUrl": "https://github.com/storaged-project/libblockdev/releases/download/2.28-1/libblockdev-2.28.tar.gz"
+        }
+      }
+    },
     {
       "component": {
         "type": "other",