Changed the script a bit to respect old system based on jffs2.
Added a small script to automate jffs2 repair.
Merge branch 'phycard-L-board' into phycard-L-board-jffs2
Removing irrelevant script.
FEATURE: added script to autostart tftp server and flash from a jffs2 reparation folder.
BUG FIX: Flashing the old  barebox image, as we need it to run 1-bit swecc for the barebox environment.
BUG FIX: We anyway need root rights to flash over serial, so we are giving root permissions to the tftpd server.
BUGFIX: added flashing of right environment with correct swecc for repairing to jffs2 partitions.
FEATURE: Added killing of tfptd on exit.
Merge branch 'phycard-L-board' into phycard-L-board-jffs2

Conflicts:
	helpers/flash-device.sh
BUG FIX: Flashing with normal update mechanism doesn't work when bad-block-aware devices are not registered ahead of time. Now performing the update manually.
BUG FIX: ECCMODE parameter wasn't taken by flash/erase operation.
BUG FIX: Adding a flasher-image because the image we flash is not necessarily able to boot over serial.
Merge branch 'phycard-L-board-jffs2' into phycard-L-board

Conflicts:
	helpers/flash-device.sh : Taking feature we want from the JFFS2 branch but keeping UBI-FS and BCH-8 configuration.
	flash-image.sh : Transformed repair-to-jffs2 into a generic flash-image.sh