1. Don't use the bootloader and partition-table
binaries from a hello-world example. Rather the ESPTOOL_BINDIR variable
can be used to give a user-defined location.
2. The ESPTOOL_BINDIR variable has to be as generic as possible. Don't
assume any board configuration.
Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
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