Use alias-based RAM probing to detect different memory configurations on Toradex Aquila iMX95. The address wrap-around is not linear: address bits above the module capacity alias back with some low address bits XORed (bit 32 -> XOR 0xc000), as measured on 4GB and 8GB modules. During probing, skip the first 256MB, since that region is reserved. Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>