Protect some cipher suites with ifdefs for legacy openssl compatibility.
Protect some cipher suites with ifdefs for legacy openssl compatibility.

BUG=webrtc:5714

Review URL: https://codereview.webrtc.org/1851303002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#12284}

ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc