Only build when no variant is selected

Change-Id: I2db04a48cc88d14e6c3bdabdbb9a006dbcd4bf5e
msm8960: fix build

* QCOM_BSP should be set via board for the individual device and not globally for all msm8960 boards

Change-Id: I642f13a2806b0952a0b6b825c7e17f41f5516d35
Merge "Only build when no variant is selected" into lp5.0
Merge "msm8960: fix build" into lp5.0