ARM: 8701/1: fix sparse flags for build on 64bit machines

By default sparse uses the characteristics of the build
machine to infer things like the wordsize.
This is fine when doing native builds but for ARM it's,
I suspect, very rarely the case and if the build are done
on a 64bit machine we get a bunch of warnings like:
  'cast truncates bits from constant value (... becomes ...)'

Fix this by adding the -m32 flags for sparse.

Change-Id: I9045e5b77578d03e328a4a6af297e84356c02cf8
Reported-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Git-commit: 6042b8c7c08cad7a8bdc0456c619ae941962b40a
Signed-off-by: Subbaraman Narayanamurthy <subbaram@codeaurora.org>