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ARROW-17692: [R] Add support for building with system AWS SDK C++ (#14235)

This PR uses "pkg-config --static ... arrow" to collect build flags. "pkg-config --static ... arrow" reports suitable build flags that depend on build options and used libraries for Apache Arrow C++. This works with the system AWS SDK C++.

Lead-authored-by: Sutou Kouhei <kou@clear-code.com>
Co-authored-by: Nic Crane <thisisnic@gmail.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>