add tinygo device files

targets/riscv.json

@@ -16,10 +16,10 @@
 		"--gc-sections"
 	],
 	"extra-files": [
-		"src/device/riscv/start.S",
+		"targets/device/riscv/start.S",
 		"src/internal/task/task_stack_tinygoriscv.S",
 		"src/runtime/asm_riscv.S",
-		"src/device/riscv/handleinterrupt.S"
+		"targets/device/riscv/handleinterrupt.S"
 	],
 	"gdb": ["riscv64-unknown-elf-gdb"]
 }