...so building dynamic libraries down the road that link in the openssl archives
fails.  Band-aid fix that by always passing in -fPIC (alternatives would be to
patch the openssl Makefiles to only build archives and no dynamic libraries even
under "shared" or to find another fix for the original Mac OS X hiden visibility
program that triggered 9f873641 "Only build in
ExternalProject_openssl what's needed in ExternalPackage_openssl").

Change-Id: I6b92ab55b0bbd340aacf325823b1f297e95f9197