[SYSDATA][FIX] fix sysdata patches
It has been noted that during the process of fail counter increment there was the function _sysdata_switchslot_boot_ok which resets it everytime. To resolve that, the function has been removed from sysdata_set_bootcount. However, the function is still used to ensure that the boot slot partition is switched correctly.
Signed-off-by: carlo carlo.ferriolo@seco.com