RIL: Use local ril.h with non-standard RIL_SIM_IO struct

It's needed to match the RIL_SIM_IO structure used by Motorola's
libril-qc-qmi-1.so.
Fixes SIM I/O (SIM contacts, ICCID etc.)

Change-Id: I1a1758ff7d7d4a01c2d094f2ae297e11cc42920a