Add smmstore dumping script

scripts/smmstore.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+
+set -e
+
+cargo build --manifest-path libs/intel-spi/Cargo.toml --example read --release
+sudo ./libs/intel-spi/target/release/examples/read
+
+make -C coreboot/util/cbfstool -j "$(nproc)"
+./coreboot/util/cbfstool/cbfstool read.rom read -r SMMSTORE -f smmstore.rom 
+
+cargo build --manifest-path libs/smmstore/Cargo.toml --release
+./libs/smmstore/target/release/smmstore smmstore.rom