Small fixes in CMake analyzer build.

- Fix path to analyzer.cc in docs.cmake.
- Add analyzer to the examples list.

Change-Id: I81e37718e83f2dfc2ba7725b3f8d89a5aa0cdb4f
diff --git a/docs.cmake b/docs.cmake
index c93a2df..7fc7563 100644
--- a/docs.cmake
+++ b/docs.cmake
@@ -54,7 +54,7 @@
   if (CONFIG_ANALYZER)
     set(AOM_DOXYGEN_EXAMPLE_SOURCES
         ${AOM_DOXYGEN_EXAMPLE_SOURCES}
-        "${AOM_ROOT}examples/analyzer.cc")
+        "${AOM_ROOT}/examples/analyzer.cc")
 
     set(AOM_DOXYGEN_EXAMPLE_DESCRIPTIONS
         ${AOM_DOXYGEN_EXAMPLE_DESCRIPTIONS}