armv7: ls1021a: Drop macro CONFIG_LS102XA

Use CONFIG_ARCH_LS1021A instead.

Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/include/asm/arch-ls102xa/config.h b/arch/arm/include/asm/arch-ls102xa/config.h
index 2f7233f..5c4da0f 100644
--- a/arch/arm/include/asm/arch-ls102xa/config.h
+++ b/arch/arm/include/asm/arch-ls102xa/config.h
@@ -108,7 +108,7 @@
 
 #define DCU_LAYER_MAX_NUM			16
 
-#ifdef CONFIG_LS102XA
+#ifdef CONFIG_ARCH_LS1021A
 #define CONFIG_USB_MAX_CONTROLLER_COUNT		1
 #define CONFIG_SYS_FSL_MAX_NUM_OF_SEC		1
 #else