Probable fix for spurious spi timeout.
Separated wlan_rx_wakelock timeout from generic one and lowered it to 250ms.
 Made wlan_rx_wakelock fall to 2nd place in hungry list, and that's something.
Separated slave_spi platform data and set a higher limit only to it. Doesn't affect anything right now, but seems like the right thing to do as it frees tuning it from the other spi devs.
Removed olympus hack from mm/page_alloc.c; will tune extra_free_kbytes from the ramdisk
Another attempt to nail the spi_slave timeout mishandling. This one was able to cope with transfer failures without reboots/hangs and without affecting the modem/ril.
Tune spi_slave_tegra clock handling so that it adequately enable/disable clocks (was on all the time, since revisions ago). Seems promising, publishing to test.
I've fixed accy ioctl (commit to come next), so let's revert that hack.
Revert "sync w/ Z's v3"

This reverts commit 2e1d9cfd1f900fe37d92d73ae15c0921b5d603c9.
Fix ioctl numbers for accy (whisperd)