openvswitch: bump to version 2.15.0

Quote NEWS item

>   - Building the Linux kernel module from the OVS source tree is
>     deprecated
>     * Support for the Linux kernel is capped at version 5.8
>     * Only bug fixes for the Linux OOT kernel module will be accepted.
>     * The Linux kernel module will be fully removed from the OVS source
>       tree
>       in OVS branch 2.18

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

net/openvswitch/Makefile

@@ -17,10 +17,10 @@ include ./openvswitch.mk
 #
 PKG_NAME:=openvswitch
 PKG_VERSION:=$(ovs_version)
-PKG_RELEASE:=3
+PKG_RELEASE:=1
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://www.openvswitch.org/releases/
-PKG_HASH:=4171e52a8c0ffe160c1daa6687219d902a2a6969b296d223d8dac980ab99a260
+PKG_HASH:=7d5797f2bf2449c6a266149e88f72123540f7fe7f31ad52902057ae8d8f88c38
 
 PKG_LICENSE:=Apache-2.0
 PKG_LICENSE_FILES:=LICENSE

net/openvswitch/openvswitch.mk

@@ -5,7 +5,7 @@
 
 # Versions
 
-ovs_version:=2.14.0
+ovs_version:=2.15.0
 ovs_builddir=$(KERNEL_BUILD_DIR)/openvswitch-$(ovs_version)
 
 # Shared vars, macros