arm: apple: Switch to standard boot

Use standard boot instead of the distro boot scripts. Use
BOOTSTD_FULL instead of BOOTSTD_DEFAULTS for easier interactive use.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Neal Gompa <neal@gompa.dev>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 01d6556..9b83b2e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1034,7 +1034,7 @@
 	select USB
 	imply CMD_DM
 	imply CMD_GPT
-	imply DISTRO_DEFAULTS
+	imply BOOTSTD_FULL
 	imply OF_HAS_PRIOR_STAGE
 
 config ARCH_OWL