u-boot_2021.07: set UBOOT_MACHINE for qemumips and qemumips64
It fails to build u-boot 2021.07 for qemumips and qemumips64:
| *** Can't find default configuration "arch/../configs/qemu_mips64_defconfig"!
According to
https://source.denx.de/u-boot/u-boot/-/commit/
5308a71
set UBOOT_MACHINE with malta defconfigs for qemumips and qemumips64.
Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
