i965/tools: 32bit compilation with meson

Building of 32bit mesa with meson causes issue:
"implicit declaration of function ‘__builtin_ia32_clflush’".
Fixed by adding msse2 compilation flag.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107843


Fixes: 314879f7 (i965: Fix asynchronous mappings on !LLC platforms.)
Signed-off-by: Sergii Romantsov <sergii.romantsov@globallogic.com>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
(cherry picked from commit 97fcccb2)
[Andres Gomez: resolve trivial conflicts]
Signed-off-by: Andres Gomez <agomez@igalia.com>

Conflicts:
	src/intel/tools/meson.build