fugu: Fix CTS testGetMaxSupportedInstances test

1. Adding codec_resources_limitation.xml
   add configure for codec level media resource manager support.

2. Modify media_codecs.xml
   set the max concurrent instances to proper value according
   to experimental data from codec level media resource manager
   implementation.

   This ensures CTS case pass:
   android.media.cts.MediaCodecCapabilitiesTest#testGetMaxSupportedInstances

Bug: 20165724

Change-Id: I5ec330f59ba15417ea1d4d2c06a64fb3b705922c
Signed-off-by: Yuanjun Huang <yuanjun.huang@intel.com>
3 files changed