Fix typos and pointer math.

Change-Id: I07f33a57454d013844b56bc3e57fe0a271e8b38c
diff --git a/media/ndk/NdkMediaCrypto.cpp b/media/ndk/NdkMediaCrypto.cpp
index 25dfe6a..d57f42b 100644
--- a/media/ndk/NdkMediaCrypto.cpp
+++ b/media/ndk/NdkMediaCrypto.cpp
@@ -74,7 +74,7 @@
 extern "C" {
 
 
-bool AMediaCrypto_isCryptoSchemeSupport(const AMediaUUID uuid) {
+bool AMediaCrypto_isCryptoSchemeSupported(const AMediaUUID uuid) {
     sp<ICrypto> crypto = makeCrypto();
     if (crypto == NULL) {
         return false;