Increase timeout to allow STM32F411 chip erase
Increase timeout to allow STM32F411 chip erase

When performing a chip erase on the STM32F411 the operation times out
because the operation takes a long time.  This patch increases the
timeout so this operation succeeds.  The timeout stops occurring when
MAX_TIMEOUT is above 32000 cycles.  Setting this value to 100K gives
gives extra time.

sg-/DAPLink,sg-/DAPLink,sg-/DAPLink,google/DAPLink-port,google/DAPLink-port,google/DAPLink-port,google/DAPLink-port