pico-imx6ul: Add a new defconfig with PICO-Pi selected

This adds a new defconfig which pre-selects the PICO-Pi baseboard
allowing a completely non-interactive boot process.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
diff --git a/board/technexion/pico-imx6ul/MAINTAINERS b/board/technexion/pico-imx6ul/MAINTAINERS
index fec5868..b8f3d24 100644
--- a/board/technexion/pico-imx6ul/MAINTAINERS
+++ b/board/technexion/pico-imx6ul/MAINTAINERS
@@ -10,3 +10,8 @@
 M:	Otavio Salvador <otavio@ossystems.com.br>
 S:	Maintained
 F:	configs/pico-hobbit-imx6ul_defconfig
+
+TechNexion PICO-PI-IMX6UL
+M:	Otavio Salvador <otavio@ossystems.com.br>
+S:	Maintained
+F:	configs/pico-pi-imx6ul_defconfig