drivers/target: Add module.h to drivers/target files as required.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index d752558..804dda9 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -36,6 +36,7 @@
 #include <linux/kthread.h>
 #include <linux/in.h>
 #include <linux/cdrom.h>
+#include <linux/module.h>
 #include <asm/unaligned.h>
 #include <net/sock.h>
 #include <net/tcp.h>