Windows certreq inf file update

KeySpec has to be 1 for new keys
in order to be able to decrypt a SCEP response
fix for GSKKit8  under windows

gsk8capicmd.exe ignores the target_type parameter the target filename
has to have the extension .p12
Merge pull request #69 from rad1us/develop

Fix for gsk8 under widnows , widnows cetreg template updated