FDT wrappers: add functions for read/write bytes

This patch adds 'fdtw_read_bytes' and 'fdtw_write_inplace_bytes'
functions for read/write array of bytes from/to a given property.
It also adds 'fdt_setprop_inplace_namelen_partial' to jmptbl.i
files for builds with USE_ROMLIB=1 option.

Change-Id: Ied7b5c8b38a0e21d508aa7bcf5893e656028b14d
Signed-off-by: Alexei Fedorov <Alexei.Fedorov@arm.com>
diff --git a/plat/arm/board/fvp/jmptbl.i b/plat/arm/board/fvp/jmptbl.i
index bfa9b56..6ccdd28 100644
--- a/plat/arm/board/fvp/jmptbl.i
+++ b/plat/arm/board/fvp/jmptbl.i
@@ -1,5 +1,5 @@
 #
-# Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved.
+# Copyright (c) 2018-2020, ARM Limited and Contributors. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -19,6 +19,7 @@
 fdt     fdt_setprop_inplace
 fdt     fdt_check_header
 fdt     fdt_node_offset_by_compatible
+fdt     fdt_setprop_inplace_namelen_partial
 mbedtls mbedtls_asn1_get_alg
 mbedtls mbedtls_asn1_get_alg_null
 mbedtls mbedtls_asn1_get_bitstring_null