[CMake] Update CMake cache file for the ARM/Aarch64 cross toolchain builds. NFC. (#94835)

* generate Clang configuration file with provided target sysroot
(TOOLCHAIN_TARGET_SYSROOTFS)
* explicitly pass provided target sysroot into the compiler-rt tests
configuration.
* added ability to configure a type of the build libraries -- shared or
static (TOOLCHAIN_SHARED_LIBS, default OFF)

In behalf of: #94284