api,sim: new 'Active' property

In preparation for the multi-SIM setup, we need a way to tell whether
a given SIM card is active or not in the system.

On systems with one single SIM slot, the available SIM card will
always be active.

On Multi-SIM Single-Standby setups we may have multiple SIM slots with
multiple SIM cards, but only one of them will be active at any given
time.

On Multi-SIM Multi-Standby setups we may have multiple SIM slots with
multiple SIM cards that may be active at the same time. E.g. the QMI
protocol allows up to 5 different active SIM cards (primary,
secondary, tertiary...).

plugins/huawei/mm-sim-huawei.c

@@ -148,6 +148,7 @@ mm_sim_huawei_new (MMBaseModem *modem,
                                 callback,
                                 user_data,
                                 MM_BASE_SIM_MODEM, modem,
+                                "active", TRUE, /* by default always active */
                                 NULL);
 }
 

plugins/iridium/mm-sim-iridium.c

@@ -63,6 +63,7 @@ mm_sim_iridium_new (MMBaseModem *modem,
                                 callback,
                                 user_data,
                                 MM_BASE_SIM_MODEM, modem,
+                                "active", TRUE, /* by default always active */
                                 NULL);
 }
 

plugins/mbm/mm-sim-mbm.c

@@ -221,6 +221,7 @@ mm_sim_mbm_new (MMBaseModem *modem,
                                 callback,
                                 user_data,
                                 MM_BASE_SIM_MODEM, modem,
+                                "active", TRUE, /* by default always active */
                                 NULL);
 }
 

plugins/nokia/mm-sim-nokia.c

@@ -62,6 +62,7 @@ mm_sim_nokia_new (MMBaseModem *modem,
                                 callback,
                                 user_data,
                                 MM_BASE_SIM_MODEM, modem,
+                                "active", TRUE, /* by default always active */
                                 NULL);
 }
 

plugins/novatel/mm-sim-novatel-lte.c

@@ -215,6 +215,7 @@ mm_sim_novatel_lte_new (MMBaseModem *modem,
                                 callback,
                                 user_data,
                                 MM_BASE_SIM_MODEM, modem,
+                                "active", TRUE, /* by default always active */
                                 NULL);
 }
 

plugins/pantech/mm-sim-pantech.c

@@ -62,6 +62,7 @@ mm_sim_pantech_new (MMBaseModem *modem,
                                 callback,
                                 user_data,
                                 MM_BASE_SIM_MODEM, modem,
+                                "active", TRUE, /* by default always active */
                                 NULL);
 }
 

plugins/sierra/mm-sim-sierra.c

@@ -139,6 +139,7 @@ mm_sim_sierra_new (MMBaseModem *modem,
                                 callback,
                                 user_data,
                                 MM_BASE_SIM_MODEM, modem,
+                                "active", TRUE, /* by default always active */
                                 NULL);
 }
 

plugins/ublox/mm-sim-ublox.c

@@ -144,6 +144,7 @@ mm_sim_ublox_new (MMBaseModem          *modem,
                                 callback,
                                 user_data,
                                 MM_BASE_SIM_MODEM, modem,
+                                "active", TRUE, /* by default always active */
                                 NULL);
 }