Add ARMv6J and ARMv6-VFP processor combo option

Cherry-picked from gingerbread branch.
Add recoveryzip target. Import recovery building/porting tools.
create a target for utilities
Fix up the autoinclusion rules for the utilities and recoveryimage target.
ota: Build uboot bootable images when necessary
build: Add support for assembling multi-image uboot files

Change-Id: I7300d36cc4227ada77f1800680869037ef33c5e8
Extract uboot image creation from core/Makefile

http://memegenerator.net/instance/12495768

This change utilizes BOARD_CUSTOM_BOOTIMG_MK to extract out the Uboot boot and
recovery image generation out into it's own file (approx 130 lines).

This should:
    * Clean up the already huge Makefile and the keep ifdeffyness down
    * Make sure Uboot changes don't effect other builds
    * Extract a lot of code that is only for 3 devices

This depreciates BOARD_USES_UBOOT but BOARD_USES_UBOOT_MULTIIMAGE is still valid.

Boards who use uboot boot images should remove BOARD_USES_UBOOT and add
  BOARD_CUSTOM_BOOTIMG_MK := device/common/uboot-bootimg.mk
to their BoardConfig.mk
(location of the makefile is not finalized)

Change-Id: I90505a99cbcda11731ac3318cfe7f76b4bf6e1c7
Fix up the recovery.fstab for adv recovery

Add options found in cm7 to allow for more complex recovery.fstabs with
multiple fstypes.

Change-Id: Id249c8f6766a1490a80fb3bd17bd7aa4e7dd9f2f
Include the primary bootloader and ramdisk in the BOOT/

This will copy over the primary bootloader (if it exists and defined)
over to the zip_root/BOOT.

This is required by encore as we need to make sure we have the correct
primary bootloader to go with the kernel.

Change-Id: I3fef417011b9c7a63109d10fc8e6794e58f73c31
Require signapk.jar for Flakeflash images

Build signapk.jar which is required to sign the recovery flakeflash image.

Change-Id: I6db422199c8afd3a3f43919980d0893f8d3efc6e
Allow low memory machine to build with a smaller java emulator.

This allows the default for 64 bit machines and adjusts the size
on lower memory machines. If you are on 32 bit you can't build
without this change, even using pae kernel with high mem.

Patch 5: found a better way to do this. Removed import string.
Change-Id: Iac1ef3b5db96029ca62897f6b64646bf6224e752