[flash] updated flash wrapper md file
[flash] updated flash wrapper md file

Signed-off-by: Dana Agur <722ee63ac781e08945d98ce4cbd6b796bd3eb635@opentitan.org>

lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan,lowRISC/opentitan