[PATCH 4/5] mach-imx: Add i.MX 8ULP binman support

[Peng Fan]

> Subject: [PATCH 4/5] mach-imx: Add i.MX 8ULP binman support
> 
> - Re-use i.MX 93 Makefile target as similar boot process
> - Create imx8ulp-u-boot.dtsi for binman image architecture
> - Create both SPL and U-Boot containers configuration
> 
> Key differences between the 93 and 8ULP SPL container are:
> - No LPDDR training library needed for 8ULP
> - 8ULP requires a uPower binary (RISC-V core) for power management
> - 8ULP also requires a M33 binary to work properly
> 
> Signed-off-by: Gary Bisson <bisson.gary at gmail.com>

Reviewed-by: Peng Fan <peng.fan at nxp.com>