libavc: Add MDCV, CLL, CCV and AVE SEI messages

This commit add support for encoding and decoding of MDCV, CLL, CCV and
AVE SEI messages

Test: avcenc -c enc.cfg, avcdec -c dec.cfg
Bug: 141931623

Change-Id: Idc0b0db5291482ae2bc19cdff65669c32374b02a
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 09d4e1f..46c9162 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -148,6 +148,7 @@
             "${AVC_ROOT}/encoder/ih264e_encode_header.c"
             "${AVC_ROOT}/encoder/ih264e_function_selector_generic.c"
             "${AVC_ROOT}/encoder/ih264e_fmt_conv.c"
+            "${AVC_ROOT}/encoder/ih264e_sei.c"
             "${AVC_ROOT}/encoder/irc_rate_control_api.c"
             "${AVC_ROOT}/encoder/irc_bit_allocation.c"
             "${AVC_ROOT}/encoder/irc_cbr_buffer_control.c"