Updated USB Vendor ID and Product ID for Bootloader/DFU
Remove unused core-v2 feature and code cleanup
Remove USB related code not required for core-v2
Renamed stm32 interrupt handler file
Updated Bootloader for core-v2 to use USB_OTG_HS instead of USB_OTG_FS
Updated CORE_FW_ADDRESS to 0x08020000 and linker scripts for core-v2