modules: hal: mchp cec: Add CEC1702 HAL header

Add the Microchip CEC1702 HAL sources from CEC1702 SDK.

Origin: Microchip CEC1702 SDK
URL: http://www.microchip.com/SWLibraryWeb/product.aspx?product=CEC1702_SDK
Version: B0 build 0300
Purpose: Provides HAL support to Microchip CEC1702
Maintained-by: External

Signed-off-by: Timo Teräs <timo.teras@iki.fi>

README.txt

@@ -7,3 +7,14 @@ sed -i -e 's/[ \t\r]*$//g' MCHP_MEC1701_bit_fields.h, then file was renamed
 to MCHP_MEC1701.h
 
 Field EOF was renamed to PEOF as it was collapsing with EOF defined in stdio.h
+
+---
+
+The CEC1702 HAL is downloaded from:
+http://ww1.microchip.com/downloads/en/softwarelibrary/cec1702_sdk/cec1702_hw_blks_b0_build_0300.zip
+
+Header files are from:
+Source/hw_blks_B0/common/include
+
+Treated with:
+sed -i -e 's/[ \t\r]*$//g' -e '/system_CEC1702_C0.h/d'

mec/CMakeLists.txt

@@ -5,6 +5,7 @@
 #
 
 zephyr_include_directories_ifdef(CONFIG_SOC_SERIES_MEC1701X .)
+zephyr_include_directories_ifdef(CONFIG_SOC_SERIES_CEC1702 .)
 
 zephyr_include_directories_ifdef(CONFIG_SOC_SERIES_MEC1501X common)
 zephyr_include_directories_ifdef(CONFIG_SOC_SERIES_MEC1501X mec1501)