CONFIG_SPL_SYS_[DI]CACHE_OFF: add

While converting CONFIG_SYS_[DI]CACHE_OFF to Kconfig, there are instances
where these configuration items are conditional on SPL. This commit adds SPL
variants of these configuration items, uses CONFIG_IS_ENABLED(), and updates
the configurations as required.

Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Trevor Woerner <trevor@toganlabs.com>
[trini: Make the default depend on the setting for full U-Boot, update
more zynq hardware]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index c8b72eb..6de31e8 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -22,12 +22,26 @@
 	help
 	  Do not enable instruction cache in U-Boot.
 
+config SPL_SYS_ICACHE_OFF
+	bool "Do not enable icache in SPL"
+	depends on SPL
+	default SYS_ICACHE_OFF
+	help
+	  Do not enable instruction cache in SPL.
+
 config SYS_DCACHE_OFF
 	bool "Do not enable dcache"
 	default n
 	help
 	  Do not enable data cache in U-Boot.
 
+config SPL_SYS_DCACHE_OFF
+	bool "Do not enable dcache in SPL"
+	depends on SPL
+	default SYS_DCACHE_OFF
+	help
+	  Do not enable data cache in SPL.
+
 source "board/cadence/xtfpga/Kconfig"
 
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