Arria10: Update u-boot binary name
Arria10: Update u-boot binary name

u-boot default configuration now correctly has u-boot.img
as the u-boot fat image filename.  So we need to update
the UBOOT_BINARY name appropriately.

Signed-off-by: Dalon Westergreen <3a5da43dc352502ecba2b98228f96a2dd9fbb1ca@gmail.com>

kraj/meta-altera,dwesterg/meta-altera,kraj/meta-altera,dwesterg/meta-altera,kraj/meta-altera