pico-pi: Add Otavio as maintainer

Update the MAINTAINERS file to list Otavio Salvador as the maintainer
for this board.

Acked-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/board/technexion/pico-imx7d/MAINTAINERS b/board/technexion/pico-imx7d/MAINTAINERS
index 3ab1aa6..0755bd8 100644
--- a/board/technexion/pico-imx7d/MAINTAINERS
+++ b/board/technexion/pico-imx7d/MAINTAINERS
@@ -4,3 +4,8 @@
 F:	board/technexion/pico-imx7d/
 F:	include/configs/pico-imx7d.h
 F:	configs/pico-imx7d_defconfig
+
+Technexion PICO-PI-IMX7
+M:	Otavio Salvador <otavio@ossystems.com.br>
+S:	Maintained
+F:	configs/pico-pi-imx7d_defconfig