[pca] Patch file not downloaded with "cipher or hash unavailable"

[Frank Langelage]

> Relevant patch: 148071-17. According to the README,
> /usr/sfw/lib/libcrypto_extra.so.0.9.7
> should be part of the patch.
>
> Now I'll switch to single user mode and apply these patches and see, 
> if the problem reappears.
>
Going back to 148071-16 the libraries
/usr/sfw/lib/libcrypto_extra.so.0.9.7
and
/usr/sfw/lib/libssl_extra.so.0.9.7
and their 64bit counterparts are still missing.

They are only installed when package SUNWcry ist installed on the 
machine. On mine it's not installed.
So there must be changes in the other files which get installed in my 
case which require the existence of SUNWcry and patches.