msm7x30: Cleanup duplicate blobs

These blobs are exactly the same for all devices:
* libaudioalsa
* chargemon & libmiscta

These blobs are exactly the same for mogami devices:
* nvimport & nv_param_loader

Unneeded blobs:
* nvcustomizer

Change-Id: I0f25063523c8a6721e1586edad154d2786f793f1