Patch from Tony Lindgren

This patch syncs the mainline kernel with the linux-omap tree.
The highlights of the patch are:
- Changed the BOOT_MEM() to use the new IO address (Tony Lindgren)
- Cleaned up interrupt handler (Juha Yrjölä)
- DMA channel linking for 1610 (Samuel Ortiz)
- GPIO fixes (Juha Yrjölä)
- IRQ fix for OMAP-730 (Kevin Hilman)
- OMAP-1510 FPGA interrupt fix (Dirk Behme)
- OMAP-1610 voltage change settings (Todd Poynor)
- Uncompress kernel serial output fixes (Tony Lindgren)