Docs: add compile notes of amrex on Frontier

Docs/compile-notes/frontier/amrex/Compile-AMReX.sh

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+cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+      -DCMAKE_INSTALL_PREFIX=${HOME}/local \
+      -DCMAKE_PREFIX_PATH='/opt/rocm-5.3.0/lib/cmake/AMDDeviceLibs;/opt/rocm-5.3.0/lib/cmake/amd_comgr;/opt/rocm-5.3.0/lib/cmake/hip;/opt/rocm-5.3.0/lib/cmake/hiprand;/opt/rocm-5.3.0/lib/cmake/hsa-runtime64;/opt/rocm-5.3.0/lib/cmake/rocprim;/opt/rocm/lib/cmake/rocrand' \
+      -DAMReX_GPU_BACKEND=HIP \
+      -DAMReX_AMD_ARCH=gfx90a \
+      -DAMReX_FORTRAN=OFF \
+      -DAMReX_FORTRAN_INTERFACES=OFF \
+      -DAMReX_OMP=OFF \
+      -DAMReX_PARTICLES=ON \
+      -DAMReX_PRECISION=DOUBLE \
+      ..
+      # -DCMAKE_CXX_COMPILER=${ROCM_PATH}/bin/amdclang++ \
+      # -DCMAKE_C_COMPILER=${ROCM_PATH}/bin/amdclang \

Docs/compile-notes/frontier/amrex/Export-AMReX.sh

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+export MPICH_GPU_SUPPORT_ENABLED=1
+export AMREX_AMD_ARCH=gfx90a
+export CC=$(which cc)
+export CXX=$(which CC)
+export FC=$(which ftn)
+export CFLAGS="-I${ROCM_PATH}/include"
+export CXXFLAGS="-I${ROCM_PATH}/include -Wno-pass-failed"
+export LDFLAGS="-L${ROCM_PATH}/lib -lamdhip64 ${PE_MPICH_GTL_DIR_amd_gfx90a} -lmpi_gtl_hsa"

Docs/compile-notes/frontier/amrex/Load-Module-AMReX.sh

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+module purge
+module load craype-x86-trento
+module load libfabric/1.15.2.0
+module load craype-network-ofi
+module load perftools-base/22.12.0
+module load xpmem/2.6.2-2.5_2.22__gd067c3f.shasta
+module load cray-pmi/6.1.8
+module load DefApps/default
+module load ccache/4.5.1
+module load cmake/3.23.2
+module load craype-accel-amd-gfx90a
+#module load rocm/5.2.0
+module load rocm/5.3.0
+module load craype/2.7.19
+module load cray-dsmml/0.2.2
+module load cray-libsci/22.12.1.1
+module load PrgEnv-gnu/8.3.3