Add various SIM card related debug command

this allows commands like
 sim-status 0		# read the status
 sim-voltage 0 5	# set voltage to 5V
 sim-clkdiv 0 2		# set clock-divider to 2 (10 MHz)
 sim-reset 0 0		# disable reset
 sim-power 0 1		# enable power

Change-Id: Id6131be60d37cba769c79952fa44f3ec6c976a38
diff --git a/sysmoOCTSIM/ncn8025.h b/sysmoOCTSIM/ncn8025.h
index a392c5d..79e8b60 100644
--- a/sysmoOCTSIM/ncn8025.h
+++ b/sysmoOCTSIM/ncn8025.h
@@ -26,3 +26,4 @@
 int ncn8025_set(uint8_t slot, const struct ncn8025_settings *set);
 int ncn8025_get(uint8_t slot, struct ncn8025_settings *set);
 int ncn8025_init(unsigned int slot);
+void ncn8025_dump(const struct ncn8025_settings *set);