intel-iommu: Fix __init section missmatch of dmar_parse_rmrr_atsr_dev

intel-iommu: Fix __init section missmatch of dmar_parse_rmrr_atsr_dev

dmar_parse_rmrr_atsr_dev() (drivers/iommu/dmar.c) is called from
dmar_dev_scope_init() (drivers/iommu/intel-iommu.c), but
dmar_dev_scope_init() is annotated with __init, when
dmar_parse_rmrr_atsr_dev() is not, causing full section missmatch
analsysis to abort compilation.

Fix problem by adding __init annotation to dmar_parse_rmrr_atsr_dev.

Signed-off-by: Witold Baryluk <baryluk@smp.if.uj.edu.pl>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>