rockchip: TPL banner should depend on CONFIG_TPL_BANNER_PRINT

The generic code in common/spl/spl.c allows TPL/SPL banners to be
silenced by unsetting CONFIG_TPL_BANNER_PRINT or CONFIG_SPL_BANNER_PRINT
respectively. However, arch/arm/mach-rockchip/tpl.c prints this banner
unconditionally.

Fix the rockchip-specific tpl.c so that the TPL banner depends on
CONFIG_TPL_BANNER_PRINT in the same way as the generic code.

Signed-off-by: <chris@arachsys.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
diff --git a/arch/arm/mach-rockchip/tpl.c b/arch/arm/mach-rockchip/tpl.c
index 5df88bd..55f6e92 100644
--- a/arch/arm/mach-rockchip/tpl.c
+++ b/arch/arm/mach-rockchip/tpl.c
@@ -54,9 +54,11 @@
 	 * printascii("string");
 	 */
 	debug_uart_init();
+#ifdef CONFIG_TPL_BANNER_PRINT
 	printascii("\nU-Boot TPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \
 				U_BOOT_TIME ")\n");
 #endif
+#endif
 	ret = spl_early_init();
 	if (ret) {
 		debug("spl_early_init() failed: %d\n", ret);