phosphor-bmc-code-mgmt: srcrev bump 59b640b071..88ba1f9ec7

Adriana Kobylak (1):
      updater: Add activations after versions

zamiseck (1):
      ItemUpdater::erase() : Fixed double delete

Change-Id: I3b059e47e0973e05203d0644f3919093ac4bdeb9
Signed-off-by: Andrew Geissler <openbmcbump-github@yahoo.com>