riscv scaffolding for codegen

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>

aya/src/generated/linux_bindings_riscv64.rs

@@ -0,0 +1 @@
+

aya/src/generated/mod.rs

@@ -11,6 +11,8 @@ mod btf_internal_bindings;
 mod linux_bindings_aarch64;
 #[cfg(target_arch = "arm")]
 mod linux_bindings_armv7;
+#[cfg(target_arch = "riscv64")]
+mod linux_bindings_riscv64;
 #[cfg(target_arch = "x86_64")]
 mod linux_bindings_x86_64;
 
@@ -24,3 +26,6 @@ pub use linux_bindings_armv7::*;
 
 #[cfg(target_arch = "aarch64")]
 pub use linux_bindings_aarch64::*;
+
+#[cfg(target_arch = "riscv64")]
+pub use linux_bindings_riscv64::*;

bpf/aya-bpf-bindings/src/riscv64/mod.rs

@@ -0,0 +1,4 @@
+#![allow(clippy::all, dead_code)]
+pub mod bindings;
+pub mod getters;
+pub mod helpers;