Commit f9c5020200ce ("riscv: directly copy device trees to /boot/dtbs")
incorrectly copied devicetrees into /boot/dtbs/$kvers instead of /boot/efi/dtbs,
inside the ESP and where U-boot expects them. This commit fixes this path.
Fixes: f9c5020200ce ("riscv: directly copy device trees to /boot/dtbs")
Signed-off-by: Adriano Cordova <adriano.cordova@canonical.com>