yuga: : use retail name for PRODUCT_MODEL

Change-Id: Ib7ba432414ca5d10a141ca94784e973489f7f2d7
yuga: re-enable "Eject SD card" option

Needed after http://review.cyanogenmod.org/62708/

Change-Id: Iaf963927a33e0f8ca2c4ef26aa77dd85e752bfe6