arm64: dts: r8a7795-h3ulcb: Add reserved memory regions

commit 1d40ccc5723b9b3028829194c422a01cf8afd2a3 from
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas-bsp.git



This patch adds reserved memory regions:
  - Lossy Decompression
       48 MiB : 0x0054000000 -> 0x0056ffffff
  - Default CMA area
      400 MiB : 0x0057000000 -> 0x006fffffff
  - CMA area for MMP
      256 MiB : 0x0070000000 -> 0x007fffffff

Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
[takeshi.kihara.df: fix W=1 dtc unit_address_vs_reg warnings]
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Meng Li <Meng.Li@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>