MPItrampoline: Build for riscv64 (#10129)

* MPItrampoline: Build for riscv64
* Fix CMake variable

---------

Co-authored-by: Ian McInerney <i.mcinerney17@imperial.ac.uk>

Author: eschnett

M/MPItrampoline/build_tarballs.jl

@@ -220,7 +220,7 @@ cp ${bindir}/mpifc ${bindir}/mpifort
 
 cd ${WORKSPACE}/srcdir/MPIconstants*
 cmake -B build \
-    -DCMAKE_BUILD_TYPE_TYPE=RelWithDebInfo \
+    -DCMAKE_BUILD_TYPE=RelWithDebInfo \
     -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TARGET_TOOLCHAIN} \
     -DCMAKE_FIND_ROOT_PATH=${prefix} \
     -DCMAKE_INSTALL_PREFIX=${prefix} \
@@ -292,3 +292,5 @@ dependencies = [
 # We use GCC 5 to ensure Fortran module files are readable by all `libgfortran3` architectures. GCC 4 would use an older format.
 build_tarballs(ARGS, name, version, sources, script, platforms, products, dependencies;
                augment_platform_block, julia_compat="1.6", clang_use_lld=false, preferred_gcc_version=v"5")
+
+# Build trigger: 1