libfile: implement new helper write_file_flash()
Compared to write_file() this new function also calls erase() to be
suitable for flash devices.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent bf8b6d4 commit fd3ecff9ec5e45bf66d27da979c58bf23cd307da
@Uwe Kleine-König Uwe Kleine-König authored on 1 Jun 2018
Sascha Hauer committed on 8 Jun 2018
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include/libfile.h
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lib/libfile.c