pia-am335x-em: update default u-boot branch

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
pia35x: disable bluetooth and wlan MACHINE_FEATURES

- causing build fails atm

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
pia335x: update PREFERRED_PROVIDERs

- use WL18xx supporting versions of various recipes
- requires arago layer

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
angstrom-feed-configs: fix package folder

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
pia335x-full-image: reorder bluetooth, wlan package dependencies

- don't use generic linux-firmware which conflicts with wl18xx firmwares
- disable all wlan related modules for pia35x
- make bluetooth packages optional

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
ti-compat-wireless-wl18xx: update to working version

- use specific versions of the compat-wireless and compat trees that
  work with the pia kernels 3.2.51

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
bluez4: add some patches from ti

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>
u-boot: remove old 2012.12 version

Signed-off-by: Björn Krombholz <b.krombholz@pironex.de>