Revert "ARM: vmlinux.lds.S: do not hardcode cacheline size as 32 bytes"

This reverts commit b73aaa354053321c3642270f6d94d04ea12cd848.
Revert "ARM: cache: assume 64-byte L1 cachelines for ARMv7 CPUs"

This reverts commit 81bab784cbedb3b25db8f21a52c8046944e83d1b.
Revert "ARM: vmlinux.lds.S: align the exception fixup table to a 4-byte boundary"

This reverts commit 3ded6b5a5fe050694ef9d3e3f797f8d0cd723941.