pbl: Add support for memory_display

The PBL has console support now, so add memory_display support aswell
which can be a good debugging aid.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

common/Makefile

@@ -1,5 +1,6 @@
 obj-y				+= memory.o
 obj-y				+= memory_display.o
+pbl-$(CONFIG_PBL_CONSOLE)	+= memory_display.o
 obj-y				+= clock.o
 obj-y				+= console_common.o
 obj-y				+= startup.o

pbl/console.c

@@ -30,3 +30,13 @@ int pr_print(int level, const char *fmt, ...)
 
 	return i;
 }
+
+int ctrlc(void)
+{
+	return 0;
+}
+
+void console_putc(unsigned int ch, char c)
+{
+	putc_ll(c);
+}