arm: Fix ARM kernel build with permitted binutils versions

arm: Fix ARM kernel build with permitted binutils versions

All ARM binutils versions post 2.11.90 contains an extra "feature" which
interferes with the kernel in various ways - extra "mapping symbols"
in the ELF symbol table '$a', '$t' and '$d'.  This causes two problems:

1. Since '$a' symbols have the same value as function names, this
   causes anything which uses the kallsyms infrastructure to report
   wrong values.
2. programs which parse System.map do not expect symbols to start with
   '$'.

Signed-off-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

===== kernel/module.c 1.120 vs edited =====