Rename ENCRYPTION_NONE to ENCRYPTION_INITIAL

gfe-relnote: n/a (renaming enum value)
PiperOrigin-RevId: 238730788
Change-Id: I628f4a333a257ebffcb018084dc09668ebfcacf1

quic/core/frames/quic_crypto_frame.cc

diff --git a/quic/core/frames/quic_crypto_frame.cc b/quic/core/frames/quic_crypto_frame.cc
index 9d602bc..fafbba8 100644
--- a/quic/core/frames/quic_crypto_frame.cc
+++ b/quic/core/frames/quic_crypto_frame.cc
@@ -9,7 +9,7 @@
 namespace quic {
 
 QuicCryptoFrame::QuicCryptoFrame()
-    : QuicCryptoFrame(ENCRYPTION_NONE, 0, nullptr, 0) {}
+    : QuicCryptoFrame(ENCRYPTION_INITIAL, 0, nullptr, 0) {}
 
 QuicCryptoFrame::QuicCryptoFrame(EncryptionLevel level,
                                  QuicStreamOffset offset,