arm64: dts: freescale: imx93-tqma9352: fix CMA alloc-ranges

[ Upstream commit cd0c6872aab4d2c556a5e953e6926a1b4485e543 ]

DRAM starts at 0x80000000.

Fixes: c982ecfa

 ("arm64: dts: freescale: add initial device tree for MBa93xxLA SBC board")
Signed-off-by: Markus Niebel <Markus.Niebel@ew.tq-group.com>
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>