x86: fix section mismatch warning in kernel/pci-calgary

Fix following warning:
WARNING: arch/x86/kernel/built-in.o(.text+0x1eb41): Section mismatch in reference from the function calgary_handle_quirks() to the function .init.text:calgary_set_split_completion_timeout()

calgary_handle_quirks() are only called at
__init time (in calgary_init_one() via handle_quirks ops).
So annotate this function and the sister function __init.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/pci-calgary_64.c

@@ -1006,7 +1006,7 @@ static void __init calgary_set_split_completion_timeout(void __iomem *bbar,
 	readq(target); /* flush */
 }
 
-static void calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
+static void __init calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
 {
 	unsigned char busnum = dev->bus->number;
 	void __iomem *bbar = tbl->bbar;
@@ -1022,7 +1022,7 @@ static void calioc2_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
 	writel(cpu_to_be32(val), target);
 }
 
-static void calgary_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
+static void __init calgary_handle_quirks(struct iommu_table *tbl, struct pci_dev *dev)
 {
 	unsigned char busnum = dev->bus->number;