security: Align inode_setattr hook definition with EVM

Add the idmap parameter to the definition, so that evm_inode_setattr() can
be registered as this hook implementation.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index a6bf90a..cedb4cb 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3136,7 +3136,8 @@ static int selinux_inode_permission(struct inode *inode, int mask)
 	return rc;
 }
 
-static int selinux_inode_setattr(struct dentry *dentry, struct iattr *iattr)
+static int selinux_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
+				 struct iattr *iattr)
 {
 	const struct cred *cred = current_cred();
 	struct inode *inode = d_backing_inode(dentry);