thunderbolt: Fix typos and magic number

Fix typo in tb_cfg_print_error() message.  Fix bytecount in struct
tb_drom_entry_port comment.  Replace magic number in tb_switch_alloc().
Rename tb_sw_set_unpplugged() and TB_CAL_IECS to fix typos.

[bhelgaas: no functional change intended]
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Andreas Noever <andreas.noever@gmail.com>
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
index d2c3fe3..24b6d30 100644
--- a/drivers/thunderbolt/tb.c
+++ b/drivers/thunderbolt/tb.c
@@ -246,7 +246,7 @@
 	if (ev->unplug) {
 		if (port->remote) {
 			tb_port_info(port, "unplugged\n");
-			tb_sw_set_unpplugged(port->remote->sw);
+			tb_sw_set_unplugged(port->remote->sw);
 			tb_free_invalid_tunnels(tb);
 			tb_switch_free(port->remote->sw);
 			port->remote = NULL;