cm.mk: remove wifi direct

Upstream commit e31df6bd3b7e52d70c1c3c0ab4307b711f12ab68 from
arco's branch.
https://github.com/arco/android_device_htc_buzz/commit/e31df6bd3b7e52d70c1c3c0ab4307b711f12ab68

Not supported in wifi driver.

Change-Id: Idcc4285f653c5c8d81234522297248aa232a3b5a
buzz.mk: add ldpi overlays

Adds the ldpi overlays instead of overwriting them.
Hint taken from the marvel repository at git.cryptomilk.org.

Change-Id: Ibec61632659e94446c719e722742a2cb7570d3f4
buzz.mk: don't copy files to root/

Skips the copy of the wifi module and firmaware files to root/,
it seems that they are not needed there.

Change-Id: I83bef62d0cc442e95cec5aa96e75e788a56c9c5f

Conflicts:

	buzz.mk
buzz.mk: skip libmm-omxcore

There is no (not yet?) such a target in the local buzz repo,
so it won't get built anyway.

Change-Id: I2b17be10dd27a90c5b3d96c50ebb7d9130502e2f
add media_codecs.xml

Adds media_codecs.xml and copies it to system/etc/.
Taken from the marvel repo at git.cryptomilk.org.

Change-Id: I185b4115197bab0ab579798bd2f735dd498c325b
BoardConfig.mk: remove (unneeded?) audio build vars

Removes some vars from the audio build system variables that
are no longer needed. At least, grepping the source did not
turn anything up.

Change-Id: I0b476e7876cfd1d26de47bf95f2745f6adbf6663
recovery.fstab: switch /sd-ext to type auto

Changes the filesystem type of /sd-ext to auto, taken from the marvel
repo at git.cryptomilk.org.

Change-Id: I77439927e366f07833b9fd11a02e90dbe1212200