fix(realm): fixup pdev_create arguments

Directly invoke host_rmi_pdev_create with invalid arguments instead of
referring to gbl_host_pdevs[0] as no valid devices exists in TRP
run config.

Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: I424d77ff2cd3b265a1b1bdcb8e44aa6851c72d13
1 file changed