Now that we have a USB descriptor for HID+VCP that works
on Ubuntu 11.10, MacOS 10.7.3, Win7-SP1-32bit,
WinXP-SP3-32bit, Win7-SP1-64bit.
VCP is known to not work on WinXP without service pack 3.
for sensing and then load different config for CC and CC3D. Updated the
bootloader as well. Also changed the PIOS_USB_CheckAvailability function to
only return the sense signal and not the transfer_possible flag as this is not
set in time for the bootloader on CC3D for some reason.
Board specific HW configuration is now collected in a single .c
file for each board. This HW configuration is #include'd into
the FW, BL and BU builds for each board.
These new .c files are found in:
flight/board_hw_defs/<board_name>/board_hw_defs.c
Parts of this information were previously duplicated between
the BL and FW builds. This commit cleans up the duplication.
Using a #include on a .c file is a bit ugly but it allows us
to ensure that all of the symbols in the board_hw_defs.c file
are *ONLY* used in the PIOS_Board_Init() function for each
software build.
