Integrate meta-seco-imx/u-boot-seco-imx/davc/fix_splashscreen

Commit: https://git.seco.com/edgehog/layers/seco/meta-seco-imx/-/commit/fd49609161f8d12a001b03e29c485f5163bada10

Integrate u-boot-seco-imx/davc/fix_splashscreen

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Commit: https://git.seco.com/edgehog/bsp/nxp/u-boot-seco-imx/-/commit/af7b0d00cb9dfaf1db7ce93e6f859e47542da410

[iMX6][iMX8][SPLASH SCREEN] Fix address per CPU type

At the time, an unique address location is declared for the support of the Splash Screen. With this change, that address is set for each CPU type, inside the their common part. This fixes also the issue observed on C26: reset before the kernel boot.