Changes to the BootloadHID for DDK v2.x

+ Actually, there is no change in the HIDBoot, but the ATmega32's fuse
	value has been changed in the Makefile - to be specific the HFUSE
	has been changed to 0xC8 from 0x88 (to disable JTAG by default, to
	be able to access PC2-5 as normal I/Os). So, to distinguish DDKs,
	programmed with this changed fuse value, from the earlier value, the
	HIDBoot's minor version number has been incremented. Hence,
+ Updated the HIDBoot version to 2.1, in both firmware & commandline

+ Now, with this the commandline bootloadHID used in the script
	upgrade_firmware of the LDDK firmware v2.1 needs to be changed. But,
	more than that, (as the LDDK firmware v2.1 is same) this changed
	script should also be able to upgrade the firmware for DDKv2.1 w/
	HIDBoot v2.0, as well. Hence, modified the create_package script
	accordingly. As there is no literal change in the actual LDDK
	firmware v2.1, the version number has been preserved. But as there
	is an overall change in the LDDK firmware's folder, the tag fw/v2.1,
	now would be this checkin