mmc: fix the workqueue overload battery waste

After switching to the smdk4412 kernel I noticed a workqueue overload,
battery lasting less, and Android OS showing up at the top as result.

Tracing showed that mmc_host_clk_gate_work was one of the runqueues
called regularly in the background.

The #ifdef is clearly reversed and that leads to the ndelay being called
every time, while ndelay was never called before.

Not yet sure if this fixes the "apparent" regression but it's not bad so
far, after 1h of uptime android OS is below Android System.

Change-Id: Ib908b0c20c4bc8dd889d0d228ee3ea63820b98cf
mshci: disable MMC_CAP_ERASE on u1

Change-Id: I89d868bd380924b012ef33fca51301b0dcb556a0
Merge "mshci: disable MMC_CAP_ERASE on u1" into cm-10.1
Increase lowest GPU step for 1400MHz devices

Devices using the 1400MHz Exynos 4210 are using 1280*800 screens. This
is a much bigger resolution than the Galaxy S2. 100MHz as the lowest GPU
step is too low for these devices, resulting in lag. Bump it up to
134MHz.

Change-Id: Ifd08cdc2e263695232d034890e54585f122453ff
mali: pick the right GPU voltage table for 1400MHz devices, restore
thresholds

8-level table was always used, resulting in increased voltages for
1400MHz devices. Now, the right table (5-level) can be picked at
runtime.

Restore the thresholds to stock value for more stable frequencies.

Change-Id: I29900535c15557e75c72793b7169771982fce7f9
Merge "mali: pick the right GPU voltage table for 1400MHz devices, restore thresholds" into cm-10.1
max77693: Standardize the output of the "online" property

Return "0" when no power supply is present
Fixes CYAN-2138

Change-Id: I4a4391a454e8e1c5681f8a27ce498f77b4934e28
Revert "max77693: Standardize the output of the "online" property"

This reverts commit 1a05356029493b29f866cf04f7550243ef3ae687, the
enumerator breakage introduced by change Iafbd9fb45253b02d539ac0ba114f57b3bf9eeed4
can be reverted cleanly without further impact and it's a cleaner fix

Change-Id: I351c320f98691241fbe321a0b1ac54152802deb4
Revert "wakelock: use single threaded workqueueus"

This reverts commit 7cf296f8064db7991c4cffb13e07de1b5a981d4a.

---------------------------------

It's still unclear exactly why unbound workqueues increase the Android
OS load measurably (when phone is idle with screen off, which makes
sense as that is when wakelocks use the workqueue), probably it's
because of more tasks spawned.

Change-Id: Ib99ca0ccf727c2419289338aa4916bf90b6a8ef5