Revert "atv_base.mk: switch to new H264 and MPEG2 software codecs"

clang builds fail on the dependent libraries

This reverts commit 9f2ef6b342d422f04dc617b503b1835f3b4ef6fb.

Change-Id: Icba7816d3c78b3dcca5368881b25fab36202f028
diff --git a/products/atv_base.mk b/products/atv_base.mk
index b941bf5..e908a13 100644
--- a/products/atv_base.mk
+++ b/products/atv_base.mk
@@ -41,14 +41,13 @@
     libstagefright_soft_amrdec \
     libstagefright_soft_amrnbenc \
     libstagefright_soft_amrwbenc \
-    libstagefright_soft_avcdec \
-    libstagefright_soft_avcenc \
     libstagefright_soft_flacenc \
     libstagefright_soft_g711dec \
     libstagefright_soft_gsmdec \
+    libstagefright_soft_h264dec \
+    libstagefright_soft_h264enc \
     libstagefright_soft_hevcdec \
     libstagefright_soft_mp3dec \
-    libstagefright_soft_mpeg2dec \
     libstagefright_soft_mpeg4dec \
     libstagefright_soft_mpeg4enc \
     libstagefright_soft_opusdec \