suspend: add boot timer

The EG25 modem needs at least 2 minutes after indicating 'RDY'
to be fully operational. If the modem is suspended before that,
calls or texts may not be seen by the userspace.
This mostly occurs when a full reboot or poweroff/poweron
sequence of the phone is performed.

:

src/manager.h

@@ -43,8 +43,10 @@ struct EG25Manager {
     MMModem *mm_modem;
 
     GDBusProxy *suspend_proxy;
-    int suspend_inhibit_fd;
+    int delay_inhibit_fd;
+    int block_inhibit_fd;
     guint suspend_timer;
+    guint boot_timer;
 
     GUdevClient *udev;