[ril] Indicate SIM card presence in appropriate radio state. Contribu…

…tes to JB#33805

This also reduces the number of GET_SIM_STATUS requests. Only one object
per RIL instance makes these requests, the results are shared by all
other objects involved.

In addition to that, radio power on request is retried if radio power
unexpectedly switches off which does happen on multi-sim hardware.

ofono/Makefile.am

@@ -136,8 +136,10 @@ builtin_sources +=	drivers/ril/ril_call_barring.c \
 			drivers/ril/ril_phonebook.c \
 			drivers/ril/ril_plugin.c \
 			drivers/ril/ril_plugin_dbus.c \
+			drivers/ril/ril_radio.c \
 			drivers/ril/ril_radio_settings.c \
 			drivers/ril/ril_sim.c \
+			drivers/ril/ril_sim_card.c \
 			drivers/ril/ril_sim_dbus.c \
 			drivers/ril/ril_sms.c \
 			drivers/ril/ril_stk.c \