board: phytec: imx8mp-phycore: Switch to binman

Use now binman for image creation.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index 0669363..ccaf106 100644
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -127,6 +127,7 @@
 
 config TARGET_PHYCORE_IMX8MP
 	bool "PHYTEC PHYCORE i.MX8MP"
+	select BINMAN
 	select IMX8MP
         select SUPPORT_SPL
 	select IMX8M_LPDDR4