serrano: Remove unused blobs from extract script

Change-Id: I2bdd5522e1e36922304b3e7fdd07105870de6208
serrano: Use QCOM_BSP

 * Needed for updated Adreno blobs

Change-Id: I29040835d6868a227fe0b54afc258c162e751a79
serrano: Skip building AOSP camera HAL

Change-Id: Id7f362299e3a897918bb508ae59aa8ee110abc62
serrano: Add DeviceSettings

 * Moved from msm8930-common

Change-Id: I4f9f0845d91a8770e4b7baba5f4005b100f2c7ac