Make sure we don't show emergency dialer

Turns out we need to disable support for texting/sms to get rid of
the "emergency call" button on the 1st startup wizard.

Change-Id: I3fbe19e9141fe0c1c82af8da80ae5de92ddf4f4b
Uses device_tablet.mk instead of device.mk

Needs patch in device/sony/lagan

Change-Id: I8a74b28d1aebf05cef0871ca4f5c7d16b6e4b065
ro.sf.lcd_density should be 240

Change-Id: Ib771cea53120b53e7626b29f46f167adae2f20a3
Adding windy kernel based on ae67dcfb1

and a way to set kernel at build time.

To build for windy do:

  make TARGET_PREBUILT_KERNEL=kernel.windy -j5

Change-Id: Iee4a0f4837e015e8869e4c5a9c9ee45971566ee7
Cleanup of how we make the device mk files

Less duplication = less chance of bugs

Change-Id: Ic4ff1ef89d718a4a746abe5163cd8bfa35749b3b
Adding lunch helper for sgp311

Change-Id: I3608c9f00d525d100c1a836ea31a2fb745915e3f
Added note about SGP311 in REAME