Linux defconfig: Update to 3.10 and fix USB host not working

Run through menuconfig, so defconfig is updated to the current kernel.
USB was missing a config item, without it host mode did not work.
u-boot-zynq_git: Fix build failure in install phase

Sometimes the "install" phase would fail (missing BOOT.BIN file).
"bootbin" must be called before install and deploy, fix the addtask
line to make that explicit.