kconfig: ls102xa: Change the prompt messages

As NOR/NAND/SD boot are all supported on LS1021AQDS/TWR
boards, the prompt message "Support ls1021aqds_nor" in
Kconfig is not clear. This patch changes it to
"Support ls1021aqds".

Signed-off-by: Alison Wang <alison.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 11ae5f8..c026dec 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -728,12 +728,12 @@
 	select ARM64
 
 config TARGET_LS1021AQDS
-	bool "Support ls1021aqds_nor"
+	bool "Support ls1021aqds"
 	select CPU_V7
 	select SUPPORT_SPL
 
 config TARGET_LS1021ATWR
-	bool "Support ls1021atwr_nor"
+	bool "Support ls1021atwr"
 	select CPU_V7
 	select SUPPORT_SPL