ext: cc3200sdk: Import HAL for TI CC3200 SoC

The CC3200 SDK provides a peripheral driver library and hardware
register access header files for the Texas Instruments SimpleLink
CC3200 SoC.

Origin: Texas Instruments CC3200 SDK v1.2.0
URL: http://www.ti.com/tool/cc3200sdk


Purpose: Provide driver library and HAL for TI CC3200 SoC
Maintained-by: External

Jira: ZEP-1109
Change-Id: Ieb7f833adfbb7bc04842cfd0cd95127c48ab9eb1
Signed-off-by: Gil Pitney <gil.pitney@linaro.org>