refactor: moved drivers hdr files to include/drivers/nxp

NXP drivers header files are moved:
  - from:  drivers/nxp/<xx>/*.h
  - to  :  include/drivers/nxp/<xx>/*.h

To accommodate these changes each drivers makefiles
drivers/nxp/<xx>/xx.mk, are updated.

Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I3979c509724d87e3d631a03dbafda1ee5ef07d21
diff --git a/include/drivers/nxp/interconnect/ls_interconnect.h b/include/drivers/nxp/interconnect/ls_interconnect.h
new file mode 100644
index 0000000..777089c
--- /dev/null
+++ b/include/drivers/nxp/interconnect/ls_interconnect.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2020-2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef LS_INTERCONNECT_H
+#define LS_INTERCONNECT_H
+
+#if (INTERCONNECT == CCI400)
+#define CCI_TERMINATE_BARRIER_TX	0x8
+#endif
+
+/* Interconnect CCI/CCN functions */
+void plat_ls_interconnect_enter_coherency(unsigned int num_clusters);
+void plat_ls_interconnect_exit_coherency(void);
+
+#endif