Add NXP LPCXpresso55S69 board support

Build TF-M firmware for NXP LPCXpresso55S69 board

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: I04103efba7c85431b463100555b68cdd74ce812d
diff --git a/tfm_ci_pylib/tfm_build_manager.py b/tfm_ci_pylib/tfm_build_manager.py
index 4516f90..1d05883 100644
--- a/tfm_ci_pylib/tfm_build_manager.py
+++ b/tfm_ci_pylib/tfm_build_manager.py
@@ -41,7 +41,8 @@
                "arm/musca_b1/secure_enclave":   "MUSCA_B1_SE",
                "arm/musca_s1":                  "MUSCA_S1",
                "stm/stm32l562e_dk":             "stm32l562e_dk",
-               "arm/diphda":                    "DIPHDA"}
+               "arm/diphda":                    "DIPHDA",
+               "nxp/lpcxpresso55s69":           "lpcxpresso55s69"}
 
 mapCompiler = {"toolchain_GNUARM.cmake":   "GNUARM",
                "toolchain_ARMCLANG.cmake": "ARMCLANG"}