[compiler-rt] Add supported Arm arches for the baremetal profile lib (#172984)

Following https://github.com/llvm/llvm-project/pull/167998 add the list
of supported baremetal Arm architectures to be able to build compiler_rt
profile library for all variants in Arm Toolchain for Embedded, the list
comes from architectures used in multilib configuration files in
https://github.com/arm/arm-toolchain/tree/arm-software/arm-software/embedded/arm-multilib/json/variants

GitOrigin-RevId: 3b68fd58b01b84ba0f8335a55eeba9faeca98d67