pollux_windy: use retail name rather than product code for PRODUCT_MODEL

Change-Id: I2aba9a0b0d540fb9e3530081bf834f7ce3a551a0
disable overlay
Merge branch 'phablet-4.4.2_r1' of github.com:mamenyaka/android_device_sony_pollux_windy into phablet-4.4.2_r1