Revert "Initial BCM21553 Support for frameworks/base"

This reverts commit 1d28d56267a60adbfc59646d29986636de599cec.
Revert "Broadcom 4.0.4 ICS drivers"

This reverts commit 2a23e2289e632fc061a1716553fbfc9cb7e36de5.
bionic: allow direct TLS access on ARMv6-VFP arch

When ARCH_ARM_HAVE_TLS_REGISTER is true, build libc and linker
in arm mode (to workaround the missing MCR/MRC registers in thumb
mode).

Change-Id: I5148a037da2e80c91798c742638b1d81d9f1352a