rename target to polkavm

Signed-off-by: xermicus <cyrill@parity.io>

crates/llvm-context/src/polkavm/evm/mod.rs

@@ -0,0 +1,19 @@
+//! The EVM instructions translation utils.
+
+pub mod arithmetic;
+pub mod bitwise;
+pub mod call;
+pub mod calldata;
+pub mod comparison;
+pub mod context;
+pub mod create;
+pub mod crypto;
+pub mod ether_gas;
+pub mod event;
+pub mod ext_code;
+pub mod immutable;
+pub mod math;
+pub mod memory;
+pub mod r#return;
+pub mod return_data;
+pub mod storage;