configs: Remove unused or redundant CONFIG symbols

A number of CONFIG symbols have crept in that are never referenced in
code, so drop them here. Further, we have two symbols being enabled
in headers while already enabled correctly in Kconfig, so these lines
can also be removed.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index 2862257..9656c52 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -29,6 +29,7 @@
 	select ESBC_HDR_LS if CHAIN_OF_TRUST
 	select FSL_LAYERSCAPE
 	select FSL_LSCH3
+	select FSL_TZASC_400
 	select GICV3
 	select NXP_LSCH3_2
 	select SYS_FSL_HAS_CCI400
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/config.h b/arch/arm/include/asm/arch-fsl-layerscape/config.h
index 12758c8..516c9ea 100644
--- a/arch/arm/include/asm/arch-fsl-layerscape/config.h
+++ b/arch/arm/include/asm/arch-fsl-layerscape/config.h
@@ -160,7 +160,6 @@
 
 #elif defined(CONFIG_ARCH_LS1028A)
 #define CFG_SYS_FSL_CLUSTER_CLOCKS		{ 1, 1 }
-#define CONFIG_FSL_TZASC_400
 
 /* TZ Protection Controller Definitions */
 #define TZPC_BASE				0x02200000
diff --git a/arch/arm/mach-mvebu/include/mach/config.h b/arch/arm/mach-mvebu/include/mach/config.h
index 96a0810..6102747 100644
--- a/arch/arm/mach-mvebu/include/mach/config.h
+++ b/arch/arm/mach-mvebu/include/mach/config.h
@@ -27,7 +27,4 @@
 
 #define MV_UART_CONSOLE_BASE		MVEBU_UART0_BASE
 
-/* Needed for SPI NOR booting in SPL */
-#define CONFIG_DM_SEQ_ALIAS		1
-
 #endif /* __MVEBU_CONFIG_H */