verdin-imx8mm: verdin-imx8mp: update env memory layout

Update the distro config env memory layout for the Verdin iMX8M Mini and
Verdin iMX8M Plus:

- loadaddr=0x48280000 allows for 128.5MB area for uncompressing (ie FIT
  images, kernel_comp_addr_r, kernel_comp_size)
- fdt_addr_r = loadaddr + 127.5MB : allows for 127.5MB kernel
- scriptaddr = fdt_addr_r + 512KB : allows for 512KB fdt
- ramdisk_addr_r = scriptaddr + 512KB : allows for 512KB script

Memory layout taken from commit fd5c7173ade4
("imx8m{m,n}_venice: update env memory layout") but moved loadaddr by an
additional 0.5MB to avoid "Moving Image from 0x48200000 to 0x48280000"
during booti plus actually defining kernel_comp_size to make booti work.

Note that for our regular BSP Layers and Reference Images for Yocto
Project an updated distro boot script is required (see
meta-toradex-bsp-common/recipes-bsp/u-boot/u-boot-distro-boot).

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
diff --git a/include/configs/verdin-imx8mp.h b/include/configs/verdin-imx8mp.h
index fca40be..9b8db22 100644
--- a/include/configs/verdin-imx8mp.h
+++ b/include/configs/verdin-imx8mp.h
@@ -34,10 +34,12 @@
 #endif /* CONFIG_CMD_NET */
 
 #define MEM_LAYOUT_ENV_SETTINGS \
-	"fdt_addr_r=0x43000000\0" \
-	"kernel_addr_r=0x40000000\0" \
-	"ramdisk_addr_r=0x46400000\0" \
-	"scriptaddr=0x46000000\0"
+	"fdt_addr_r=0x50200000\0" \
+	"kernel_addr_r=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
+	"kernel_comp_addr_r=0x40200000\0" \
+	"kernel_comp_size=0x08080000\0" \
+	"ramdisk_addr_r=0x50300000\0" \
+	"scriptaddr=0x50280000\0"
 
 /* Enable Distro Boot */
 #define BOOT_TARGET_DEVICES(func) \