boards: arm: Add support for TI MSP-EXP432P401R-LAUNCHXL

This patch adds support for TI Simplelink MSP-EXP432P401R-LAUNCHXL
development board based on Cortex M4 family

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
14 files changed