board/bsh/imx6ulz-bsh-smm-m2: flash U-Boot

Fix the board flashing by adding the bootloader, which I had mistakenly
forgotten to include in the script.

Fixes: 322e8d845196 ("configs/imx6ulz_bsh_smm_m2_defconfig: new defconfig")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>

board/bsh/imx6ulz-bsh-smm-m2/nand-full.lst

@@ -25,6 +25,8 @@ SDPV: jump
 
 FB: ucmd setenv fastboot_buffer ${loadaddr}
 FB[-t 60000]: ucmd nand erase.chip
+FB: download -f _image
+FB: ucmd nandbcb init ${fastboot_buffer} nandboot ${filesize}
 FB[-t 60000]: ucmd ubi part rootfs
 FB[-t 60000]: ucmd ubi create root -
 FB: download -f _filesystem

configs/imx6ulz_bsh_smm_m2_defconfig

@@ -42,3 +42,4 @@ BR2_PACKAGE_HOST_E2FSPROGS=y
 BR2_PACKAGE_HOST_ENVIRONMENT_SETUP=y
 BR2_PACKAGE_HOST_GENIMAGE=y
 BR2_PACKAGE_HOST_MTOOLS=y
+BR2_PACKAGE_HOST_UUU=y