Grab McASP0 for Bluetooth A2DP I2S interface

[jadonk]

• Move MDIR_1A from U18 to P9_12 (C12) to get MCASP0_ACLKR
• Move LED_2 from V12 to P8_32 (T5) to get MCASP0_FSR
• Move USB1_OCn from T16 to GPIO2_21 (M16) to get MCASP0_AXR0
• Remove HDMICLK_DISn from V17 to get MCASP0_AXR1
• Remove HDMI_INT from U16, just in case I need to get MCASP0_FSX

[jadonk]

Support the WowWee Grove Cube speaker:
http://store.wowwee.com/groove-cube.html

[jadonk]

I've confirmed that the McASP connection is not required for connecting to Bluetooth speakers.

[erikwelsh]

In Rev A1, BT audio signals are hooked up to McASP0 with the following pins:

• MCASP0_ACLKR - pin U18
• MCASP0_FSR - pin V12
• MCASP0_AXR0 - pin T16
• MCASP0_AXR1 - pin V17

The WL183x did not need MCASP0_FSX. Therefore, it was not connected.

[jadonk]

BeagleBone Green Wireless .dts file has some info on getting this configured. I'm not sure how to get the device in the right mode to verify this functionality.