openssl: Add LDFLAGS to Configure
openssl: Add LDFLAGS to Configure

Closes Linuxbrew/linuxbrew#904

SuperNEMO-DBD/cadfaelbrew,sjackman/linuxbrew,saketkc/linuxbrew,gnubila-france/linuxbrew,reelsense/linuxbrew,gnubila-france/linuxbrew,Angeldude/linuxbrew,reelsense/linuxbrew,Angeldude/linuxbrew,Angeldude/linuxbrew,Homebrew/linuxbrew,Homebrew/linuxbrew,reelsense/linuxbrew,gnubila-france/linuxbrew,Linuxbrew/linuxbrew,Homebrew/linuxbrew,Linuxbrew/linuxbrew,Homebrew/linuxbrew,sjackman/linuxbrew,reelsense/linuxbrew,saketkc/linuxbrew,sjackman/linuxbrew,Linuxbrew/linuxbrew,saketkc/linuxbrew,Angeldude/linuxbrew,gnubila-france/linuxbrew,SuperNEMO-DBD/cadfaelbrew,SuperNEMO-DBD/cadfaelbrew,Linuxbrew/linuxbrew,saketkc/linuxbrew,sjackman/linuxbrew,SuperNEMO-DBD/cadfaelbrew