Add arm64 Speedgoat toolchain file.

Author: pablorcum

toolbox/overlay-triplets/arm64-speedgoat-linux-static.cmake

@@ -0,0 +1,16 @@
+set(VCPKG_TARGET_ARCHITECTURE arm64)
+set(VCPKG_CMAKE_SYSTEM_NAME Linux)
+
+# Linkage preferences
+set(VCPKG_CRT_LINKAGE dynamic)
+set(VCPKG_LIBRARY_LINKAGE static) # common for embedded
+
+# Pass environment variables
+set(VCPKG_ENV_PASSTHROUGH SDKTARGETSYSROOT;PATH)
+
+# Absolute path to the chainloaded toolchain
+set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE
+    "${CMAKE_CURRENT_LIST_DIR}/speedgoat-linux-toolchain.cmake")
+
+# Disable debug builds
+set(VCPKG_BUILD_TYPE release)