arm: total_compute: Initialize environment variables

Initialize the environment variables 'fdt_addr_r' and 'kernel_addr_r'
during the misc init phase. The static configurations are not needed,
remove them.

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Signed-off-by: Leo Yan <leo.yan@arm.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d012741..f4ce884 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1391,6 +1391,7 @@
 	select DM_MMC
 	select DM_GPIO
 	imply OF_HAS_PRIOR_STAGE
+	imply MISC_INIT_R
 
 config TARGET_LS2080A_EMU
 	bool "Support ls2080a_emu"