Revert "u8860: Remove local copy of akmdfs"

Our akmdfs is newer than AOSP and not compatible with kernel driver.
Build our binary instead.

This reverts commit 6f2d5e5fc8f249f8a0e7cd6ce9a84635a5a5840d.
libril: Update to AOSP LP
libril: Add v6 ICS support

Changes:
 * Redirect current requests to v6 specific (ril_commands.h) and remove
   unsupported ones.
 * Check for request number 0 before sending request (ril.cpp) to not let
   unsupported commands through.
 * Convert v6 unsolicited response codes to current (ril.cpp).
 * Do SIM I/O according to v4 protocol (ril.cpp).