- Define MISSING_EGL_EXTERNAL_IMAGE for EGL libraries without
  GL_OES_GLES_image_external
- Define MISSING_GRALLOC_BUFFERS for gralloc HALS without the
  0x800 (USAGE_HW_COMPOSER) usage
- Define MISSING_EGL_PIXEL_FORMAT_YV12 for libraries who don't
  recognize the Android YV12 colorspace
- Define FORCE_EGL_CONFIG=<value> for blobs which mis-identify the
  usable EGL configuration (pick the value from a CM7 log)

A typical GB library set will need
COMMON_GLOBAL_CFLAGS += -DMISSING_EGL_EXTERNAL_IMAGE -DMISSING_EGL_PIXEL_FORMAT_YV12 -DMISSING_GRALLOC_BUFFERS

Original Patch by Ricardo Cerqueira <github@cerqueira.org>.
Ported over to JB by vork <boss.benedikt@googlemail.com>

 * Commit e2fa30c breaks some older
   graphics drivers. Add a board flag to work around it.

Original for ics by Steve Kondik <shade@chemlab.org>
Ported to JB by vork <boss.benedikt@googlemail.com>

This fixes:
E/HAL     ( 1015): Cannot load library: link_image[1916]:  1015 could not load needed library 'libcamera.so' for 'camera.tegra.so' (reloc_library[1331]:  1015 cannot locate '_ZN7android7Overlay13dequeueBufferEPPv'...

Part of the "hack all the things" series for devices with old
EGL blobs, do async mode when the requested usage includes
HW_RENDERER, to avoid timing issues and stuck buffers.
Enable with the EGL_ALWAYS_ASYNC flag.

Original patch by Ricardo Cerqueria

If MISSING_GRALLOC_BUFFERS is defined (i.e., we're already hacking
around the lack of native buffers), allow retrying buffer dequeues
when the operation returns an error.
Based on work by "rapmv78" at xda-developers
(http://forum.xda-developers.com/showpost.php?p=20342919&postcount=1)

Original patch by Ricardo Cerqueira

Use BOARD_USES_LGE_ROTATION to align the HDMI output orientation
with the devices's

Original patch by Ricardo Cerquiera