ARM: s3c64xx: prepare initcalls for multiplatform

In a multiplatform kernel, each initcall is run regardless
of the platform it is meant for, so it must not attempt to
access SoC-specific registers.

This adds 'if (soc_is_s3c64xx)' to all initcalls that are
specific to the s3c64xx platform, to prevent them from breaking
other platforms once we can build them into a combined kernel.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c
index 11fbbc2..3776f7e 100644
--- a/arch/arm/plat-samsung/init.c
+++ b/arch/arm/plat-samsung/init.c
@@ -152,6 +152,11 @@
 {
 	int ret;
 
+	/* init is only needed for ATAGS based platforms */
+	if (!IS_ENABLED(CONFIG_ATAGS) ||
+	    (!soc_is_s3c24xx() && !soc_is_s3c64xx()))
+		return 0;
+
 	// do the correct init for cpu
 
 	if (cpu == NULL) {