defconfig: enable some missing options

arm cpu topology
sched mc
uaccess with memcopy
add back congestion algotithms
some arm optimisations

Signed-off-by: Dan Trifan <jimsth@gmail.com>
drivers:cpufreq:interactive: hardcode tuntable values

Signed-off-by: Dan Trifan <jimsth@gmail.com>
omap2plus-cpufreq: set default screen_on_min_freq to 350MHz

Signed-off-by: Dan Trifan <jimsth@gmail.com>