sim-se: Check Path redirection when mmapping

sim-se: Check Path redirection when mmapping

Every syscall file access should go through the redirection process

Change-Id: I1ba2063b5a254e11f47392bdad0bf0887ba73d3d
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/23063
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
Tested-by: kokoro <noreply+kokoro@google.com>