[PATCHv2] arm64: dts: freescale: fix typo Makefile

[Anders Roxell]

While trying to do 'make dtbs_install' the following error shows up

make[3]: *** No rule to make target
  '/tmp/out/obj-dir/dtbinstallfreescale/imx8mm-kontron-n801x-s.dts', needed by '__dtbs_install'.

Fix typo in imx8mm-kontron-n801x-s.dts change file ending to *.dtb

Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards")
Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx>
---
 arch/arm64/boot/dts/freescale/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 876bf484bbe6..6f0777ee6cd6 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -32,7 +32,7 @@ dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-lx2162a-qds.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-beacon-kit.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-ddr4-evk.dtb
-dtb-$(CONFIG_ARCH_MXC) += imx8mm-kontron-n801x-s.dts
+dtb-$(CONFIG_ARCH_MXC) += imx8mm-kontron-n801x-s.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mm-var-som-symphony.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-evk.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-ddr4-evk.dtb
-- 
2.28.0