Update OpenSSL 1.0.1 to compile for x86_64 using darwin64-x86_64-cc

This script was tested on a late 2012 rMBP running 10.9.2 (13C1021), CocoaPods 0.3.2, and Xcode Version 5.1.1 (5B1008).

Passes lint.

````
$ pod spec lint OpenSSL/1.0.1/OpenSSL.podspec

 -> OpenSSL (1.0.1)

Analyzed 1 podspec.

OpenSSL.podspec passed validation.
````