openvswitch: Fixup SUPPORTED_KERNELs

Signed-off-By: Steven Barth <steven@midlink.org>

net/openvswitch/Makefile

@@ -52,7 +52,7 @@ endef
 define Package/openvswitch
   $(call Package/openvswitch/Default)
   TITLE:=Open vSwitch Userspace Package
-  DEPENDS:=+libpcap +libopenssl +librt +libatomic +kmod-openvswitch @(SUPPORTED_KERNELS)
+  DEPENDS:=+libpcap +libopenssl +librt +libatomic +kmod-openvswitch @($(SUPPORTED_KERNELS))
 endef
 
 define Package/openvswitch/description
@@ -96,7 +96,7 @@ define KernelPackage/openvswitch
   SUBMENU:=Network Support
   TITLE:=Open vSwitch Kernel Package
   KCONFIG:=CONFIG_BRIDGE
-  DEPENDS:=+kmod-stp +kmod-ipv6 +kmod-gre +kmod-lib-crc32c +kmod-vxlan @(SUPPORTED_KERNELS)
+  DEPENDS:=+kmod-stp +kmod-ipv6 +kmod-gre +kmod-lib-crc32c +kmod-vxlan @($(SUPPORTED_KERNELS))
   FILES:= \
 	$(PKG_BUILD_DIR)/datapath/linux/openvswitch.$(LINUX_KMOD_SUFFIX)
   AUTOLOAD:=$(call AutoLoad,21,openvswitch)