sysreset: enable driver support in SPL/TPL

SPL/TPL also need use sysreset for some feature like panic callback.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile
index b3728ac..8e1c845 100644
--- a/drivers/sysreset/Makefile
+++ b/drivers/sysreset/Makefile
@@ -2,7 +2,7 @@
 #
 # (C) Copyright 2016 Cadence Design Systems Inc.
 
-obj-$(CONFIG_SYSRESET) += sysreset-uclass.o
+obj-$(CONFIG_$(SPL_TPL_)SYSRESET) += sysreset-uclass.o
 obj-$(CONFIG_ARCH_ASPEED) += sysreset_ast.o
 obj-$(CONFIG_ARCH_ROCKCHIP) += sysreset_rockchip.o
 obj-$(CONFIG_ARCH_STI) += sysreset_sti.o