usb: musb_hdrc build fixes

Minor musb_hdrc updates:

  - so it'll build on DaVinci, given relevant platform updates;
      * remove support for an un-shipped OTG prototype
      * rely on gpiolib framework conversion for the I2C GPIOs
      * the <asm/arch/hdrc_cnf.h> mechanism has been removed

  - catch comments up to the recent removal of the per-SOC header
    with the silicon configuration data;

  - and remove two inappropriate "inline" declarations which
    just bloat host side code.

There are still some more <asm/arch/XYZ.h> ==> <mach/XYZ.h>
changes needed in this driver, catching up to the relocation
of most of the include/asm-arm/arch-* contents.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: stable <stable@kernel.org> [2.6.27]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/musb/cppi_dma.h b/drivers/usb/musb/cppi_dma.h
index fc5216b..729b407 100644
--- a/drivers/usb/musb/cppi_dma.h
+++ b/drivers/usb/musb/cppi_dma.h
@@ -119,8 +119,8 @@
 	void __iomem			*mregs;		/* Mentor regs */
 	void __iomem			*tibase;	/* TI/CPPI regs */
 
-	struct cppi_channel		tx[MUSB_C_NUM_EPT - 1];
-	struct cppi_channel		rx[MUSB_C_NUM_EPR - 1];
+	struct cppi_channel		tx[4];
+	struct cppi_channel		rx[4];
 
 	struct dma_pool			*pool;