Revert "Updated libaudioalsa.so from SPH-M840"

This reverts commit 0c4862eebc7c8539d711ec75cc0a1f2f8a095804.
Revert "Updated vidc firmware from SPH-M840 (a.k.a galaxy prevail 2)"

This reverts commit bc438af3ce2d5daff0d47b953a1529444501e340.