bip: unwedge SDA line after flashing ITE
bip: unwedge SDA line after flashing ITE

When we exit DBGR mode on the ITE after flashing, it wedges the
SDA line, which prevents us from using dut-control cold_reset.

We do not need to exit DBGR mode since we will perform a cold reset
after we finish flashing.

BRANCH=none
BUG=b:79592483
TEST=flash bip multiple times and EC resets after flashing automatically

Change-Id: Iafbad7a88a528ec7385596fd7c674b151f276166
Signed-off-by: Jett Rink <9d4aef0593e6843318d99df31597fb6153b89787@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1060588
Reviewed-by: Furquan Shaikh <6be5c96c464778f89679b1062a2e0a6af93d2aa5@chromium.org>
Reviewed-by: Justin TerAvest <f2d83486a72e2fb2fbfb163be787ddf5d8d3393e@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec