Build error in u-boot-dm/master

[Stephen Warren]

Simon,

All 32-bit Tegra builds of u-boot-dm/master are failing with the
following (this log is from Harmony):

>   CC      spl/common/spl/spl.o
>   CC      spl/lib/display_options.o
>   LD      spl/common/spl/built-in.o
>   LD      spl/lib/built-in.o
>   LD      spl/u-boot-spl
>   OBJCOPY spl/u-boot-spl-nodtb.bin
>   COPY    spl/u-boot-spl.bin
>   BINMAN  u-boot-tegra.bin
> binman: bad magic number in 'binman.etype': b'\x03\xf3\r\n'
> /var/lib/jenkins/workspace/u-boot-denx_uboot_dm-master-build/src/u-boot/Makefile:1619: recipe for target 'u-boot-tegra.bin' failed
> make[1]: *** [u-boot-tegra.bin] Error 1