tools/build_libstagefright: rename build/libav to something neutral

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

tools/build_libstagefright

@@ -12,10 +12,10 @@ export PATH=$TOOLCHAIN/bin:$PATH
 ANDROID_SOURCE=$HOME/android
 ANDROID_LIBS=$HOME/glib
 
-rm -rf ../build/libav
-mkdir -p ../build/libav
+rm -rf ../build/stagefright
+mkdir -p ../build/stagefright
 
-DEST=../build/libav
+DEST=../build/stagefright
 FLAGS="--target-os=linux --cross-prefix=arm-linux-androideabi- --arch=arm --cpu=armv7-a"
 FLAGS="$FLAGS --sysroot=$SYSROOT"
 FLAGS="$FLAGS --disable-avdevice --disable-decoder=h264 --disable-decoder=h264_vdpau --enable-libstagefright-h264"