Add ESP32C3 RISC-V stub
diff --git a/src/kernel/riscv32/generic.jmk b/src/kernel/riscv32/generic.jmk
new file mode 100644
index 0000000..f167787
--- /dev/null
+++ b/src/kernel/riscv32/generic.jmk
@@ -0,0 +1,3 @@
+ldflags -T[pwd]/link.ld
+
+srcs serial-generic.c
\ No newline at end of file