These three are Zynq boards and the build procedure is almost the
same. Having the SoC name prefix "zynq_" would be more consistent.
Also, this is the way in which the Linux Device Trees and the U-Boot
configuration files do.
This commit renames as follows:
zedboard_defconfig -> zynq_zed_defconfig
microzed_defconfig -> zynq_microzed_defconfig
xilinx_zc706_defconfig -> zynq_zc706_defconfig
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>