Wifi: Add frequency selection for new IBSS

Allow users to select a frequency for newly created Ad-Hoc (IBSS) networks, and
show the frequency for existing IBSS.

Change-Id: Icaa09c9386967fdf0a88865ff2e64cc9b219da1f

Conflicts:
	src/com/android/settings/wifi/WifiSettings.java
Swap volume buttons when the screen is rotated (2/2)

Patch Set 7: Hide option if device not supported

Patch Set 8: Fix string derp introduced on ps7

Patch Set 9: Invert the orientation interpretations on tablets

Change-Id: Ie2166a4d50050e7a60933251bfc8cda97c42d419

Conflicts:
	res/values/strings.xml
Settings: rotation settings for devices with hardware rotation lock

All settings would be disabled on devices with hardware rotation
lock due to dependency setting. Disable dependency to allow setting
swap volume and rotation degrees on those devices.

Change-Id: Iee0532902d59fa80666e17b3853db8e3d7ed5ddc
DataUsageSummary: fix mobile data usage display for sim-less devices

- Don't assume the device has a sim card. Check for a phone number
  instead. Otherwise the mobile data usage screen will not show up
  on sim-less CDMA devices.

Change-Id: Ic6e35dc209ff05e0c89dc990ad82f4ab4d3f337d
DataUsageSummary: fix mobile data usage display for GSM devices with no number

Some providers don't write phone number onto SIM card causing the
phone number check introduced in the partially reverted commit to fail.
Re-introduce the original check with the "or" condition.

This partially reverts commit 4c51b45355b9d6fed973f946738bf455a8b7c9ea.

Change-Id: I69a65a1a421dcdf168c3d0afeb7110cb97790034