iommu/io-pgtable-arm: Move init-fn declarations to io-pgtable.h

Avoid extern declarations in c files.
Signed-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/io-pgtable.c

@@ -24,11 +24,6 @@
 
 #include "io-pgtable.h"
 
-extern struct io_pgtable_init_fns io_pgtable_arm_32_lpae_s1_init_fns;
-extern struct io_pgtable_init_fns io_pgtable_arm_32_lpae_s2_init_fns;
-extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s1_init_fns;
-extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s2_init_fns;
-
 static const struct io_pgtable_init_fns *
 io_pgtable_init_table[IO_PGTABLE_NUM_FMTS] =
 {

drivers/iommu/io-pgtable.h

@@ -143,4 +143,9 @@ struct io_pgtable_init_fns {
 	void (*free)(struct io_pgtable *iop);
 };
 
+extern struct io_pgtable_init_fns io_pgtable_arm_32_lpae_s1_init_fns;
+extern struct io_pgtable_init_fns io_pgtable_arm_32_lpae_s2_init_fns;
+extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s1_init_fns;
+extern struct io_pgtable_init_fns io_pgtable_arm_64_lpae_s2_init_fns;
+
 #endif /* __IO_PGTABLE_H */