Reduce elliptic curves and formats in ClientHello.

Advertise support of only the NIST curves P-521, P-384, and P-256, as
well as only uncompressed points.

(Imported from Chromium:
http://src.chromium.org/viewvc/chrome/trunk/deps/third_party/openssl/patches.chromium/0005-reduce_client_hello_size.patch?revision=231571)

Change-Id: I0b509b182b224bdf7aa9a4ffed24c00495c2cf75
1 file changed