test-qemu: Extend timeouts to 300 seconds (5 minutes)
test-qemu: Extend timeouts to 300 seconds (5 minutes)

Be a bit more tolerant of slow boot processes.

Change-Id: I2c1afd48768c33e049f14ac65645364aedc77e1d
Signed-off-by: Andrew Jeffery <02e0a999c50b1f88df7a8f5a04e1b76b35ea6a88@aj.id.au>

openbmc/openbmc-build-scripts,openbmc/openbmc-build-scripts