board: ge: bx50v3: add i2c eeprom bootcount storage

Add bootcount node, linking to i2c eeprom "bootcount" partitions for
storage.
Enable i2c eeprom bootcount backend storage.
Enable bootcount command and use it for failbootcmd.

Signed-off-by: Robert Beckett <bob.beckett@collabora.com>
diff --git a/include/configs/ge_bx50v3.h b/include/configs/ge_bx50v3.h
index b8b1ec7..b9227fc 100644
--- a/include/configs/ge_bx50v3.h
+++ b/include/configs/ge_bx50v3.h
@@ -109,9 +109,7 @@
 		"setcurs 5 4; " \
 		"lcdputs \"Monitor failed to start. " \
 		"Try again, or contact GE Service for support.\"; " \
-		"mw.b 0x7000A000 0xbc; " \
-		"mw.b 0x7000A001 0x00; " \
-		"ext4write ${dev} ${devnum}:5 0x7000A000 /boot/failures 2\0" \
+		"bootcount reset; \0" \
 	"altbootcmd=" \
 		"run doquiet; " \
 		"setenv partnum 1; run hasfirstboot || setenv partnum 2; " \