bitbake: ssh.py: throw ParameterError when someone tries ssh://foo; protocol=git

* taken from SFTP fetcher:
  http://patchwork.openembedded.org/patch/43027/

(Bitbake rev: 88e565855b52e905156d85c3f45b341cddfe2f55)

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/fetch2/ssh.py

@@ -73,6 +73,11 @@ class SSH(FetchMethod):
         return False
 
     def urldata_init(self, urldata, d):
+        if 'protocol' in urldata.parm and urldata.parm['protocol'] == 'git':
+            raise bb.fetch2.ParameterError(
+                "Invalid protocol - if you wish to fetch from a git " +
+                "repository using ssh, you need to use " +
+                "git:// prefix with protocol=ssh", urldata.url)
         m = __pattern__.match(urldata.url)
         path = m.group('path')
         host = m.group('host')