Omap fixes for things that were discovered during the merge window:

- Few GPMC fixes and binding doc updates noted after sending
  pull requests for the GPMC branch.

- Board fixes for beagle usb host and rx51 spi probe order

- SoC fixes dt earlyprintk, omap1 dma and omap2+ id.c error
  handling fixes

Then few minor things that are not strictly fixes but are good
to get out of the way:

- Add missing legacy mux registers for am/dm73x gpio

- Add detection for am33xx pg2.1 silicon

- Enable twl4030 audio modules in defconfig
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