Make KEY_MAX_PTS_GAP_TO_ENCODER and KEY_MAX_FPS_TO_ENCODER keys public

These two keys are in public API now, keep ndk in sync.

Also replaced strings with the defined keys in media code.

bug: 80314065
Change-Id: Ic0d50c10d1f9ab464068223a1a235b95f59f4c98
diff --git a/media/ndk/NdkMediaFormat.cpp b/media/ndk/NdkMediaFormat.cpp
index fcb706d..d20c981 100644
--- a/media/ndk/NdkMediaFormat.cpp
+++ b/media/ndk/NdkMediaFormat.cpp
@@ -342,8 +342,10 @@
 EXPORT const char* AMEDIAFORMAT_KEY_LOOP = "loop";
 EXPORT const char* AMEDIAFORMAT_KEY_LYRICIST = "lyricist";
 EXPORT const char* AMEDIAFORMAT_KEY_MAX_BIT_RATE = "max-bitrate";
+EXPORT const char* AMEDIAFORMAT_KEY_MAX_FPS_TO_ENCODER = "max-fps-to-encoder";
 EXPORT const char* AMEDIAFORMAT_KEY_MAX_HEIGHT = "max-height";
 EXPORT const char* AMEDIAFORMAT_KEY_MAX_INPUT_SIZE = "max-input-size";
+EXPORT const char* AMEDIAFORMAT_KEY_MAX_PTS_GAP_TO_ENCODER = "max-pts-gap-to-encoder";
 EXPORT const char* AMEDIAFORMAT_KEY_MAX_WIDTH = "max-width";
 EXPORT const char* AMEDIAFORMAT_KEY_MIME = "mime";
 EXPORT const char* AMEDIAFORMAT_KEY_MPEG_USER_DATA = "mpeg-user-data";