Currently the "esp32_spiflash_alloc_mtdpart" allocates a
statically-defined partition from "offset" and "size" set via
Kconfig.
This commit changes the function interface to receive those information
as arguments, enabling the creation of multiple MTD partitions with
different offsets and sizes.
Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
a7a922611b