Merge from Widevine repo of http://go/wvgerrit/55620
There were two places that explicitly referenced BoringSSL instead of
OpenSSL. (Not counting, of course, all the BoringSSL functions and
headers that still have "OpenSSL" in their names.) This change fixes one
to mention either library and the other to specifically mention
BoringSSL.
Bug: 70636815
Test: CE CDM Unit Tests
Change-Id: I8703e1c427c66953fcc565a4f8f85093c7180f46