[compiler-rt][sanitizers] build ubsan, asan etc libraries with Mac Catalyst support

Like D118875, but for ubsan, asan, etc.

With this, I can successfully run:

    bin/clang++ -target x86_64-apple-ios14.0-macabi foo.cc \
        -isysroot $(xcrun -show-sdk-path) -fsanitize=undefined

with a locally built libclang_rt.ubsan_osx_dynamic.dylib.

Differential Revision: https://reviews.llvm.org/D124059