generate key file with the requested base name

Let's require the user of this script to explicitly provide the base
file name of the generated key.

TEST=verified generating the new key in various directories (local and
     non local).

     Verified that the script fails if the user does not supply the
     required key file base name.

Change-Id: Iaf85e5822d06c65ca4b7d51f17579269576e4707
Signed-off-by: Vadim Bendebury <>
Tested-by: Vadim Bendebury <>
Reviewed-by: Mike Frysinger <>
Commit-Queue: Vadim Bendebury <>
1 file changed