NDK docs: Fix paths to frameworks/av include directories

These have moved during earlier cleanup, and the Doxyfile wasn't
updated to match.

Test: Doc generation with 'make html' includes media and camera docs
Change-Id: I7eb7e4fb28fb649915a13af486d9bc7710970f2e
diff --git a/docs/Doxyfile b/docs/Doxyfile
index bb0ca32..0ec4551 100644
--- a/docs/Doxyfile
+++ b/docs/Doxyfile
@@ -677,7 +677,7 @@
 # directories like "/usr/src/myproject". Separate the files or directories
 # with spaces.
 
-INPUT                  = ../include/android ../../av/include/ndk ../../av/include/camera/ndk
+INPUT                  = ../include/android ../../av/media/ndk/include ../../av/camera/ndk/include
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is