Revert mirror hash fixes

They are based on obsolete download tarballs

Revert "usign: fix mirror hash" (4f874423)
Revert "ubox: fix mirror hash" (9ee74b57)
Revert "opkg: fix mirror hash" (bf6f4bfa)

Signed-off-by: Felix Fietkau <nbd@nbd.name>

package/system/opkg/Makefile

@@ -20,7 +20,7 @@ PKG_SOURCE_VERSION:=$(PKG_REV)
 PKG_SOURCE_SUBDIR:=opkg-$(PKG_VERSION)
 PKG_SOURCE_URL:=http://git.yoctoproject.org/git/opkg
 PKG_SOURCE:=$(PKG_SOURCE_SUBDIR).tar.xz
-PKG_MIRROR_HASH:=abba824695a7dd4acf2a6371c4e22142656b3d1f0fa93c04410116d2170ce1a9
+PKG_MIRROR_HASH:=7accfabfb5cc1966b038b40130a50f3bbb4bdff4273150e9394c1ea8d7111d4e
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(BUILD_VARIANT)/$(PKG_NAME)-$(PKG_VERSION)
 PKG_FIXUP:=autoreconf
 PKG_REMOVE_FILES = autogen.sh aclocal.m4

package/system/ubox/Makefile

@@ -9,7 +9,7 @@ PKG_SOURCE_URL=$(LEDE_GIT)/project/ubox.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE_VERSION:=5649c028c426060616e2bd4e7ea83271cd333d21
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.xz
-PKG_MIRROR_HASH:=4936dcd9f16e634641d697042e6ce564d97790dbb0d01ce167c89ea51d802ddc
+PKG_MIRROR_HASH:=44d45a90b55146479b8a949e5498de675054200e1f6c48459d73b0ea70fcdcff
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=GPL-2.0

package/system/usign/Makefile

@@ -9,7 +9,7 @@ PKG_SOURCE_URL=$(LEDE_GIT)/project/usign.git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
 PKG_SOURCE_VERSION:=ef6419142a3b0fbcddcccf536e3c1880302c6f89
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.xz
-PKG_MIRROR_HASH:=8539292a3e8047bd7e94d4a5efc5c1228e100c7e6dfdc79670e869fb4aec3b70
+PKG_MIRROR_HASH:=170f85fb49ec3e698fbeb57e9429de3b561c22a23106fc5484ba83010178550c
 CMAKE_INSTALL:=1
 PKG_CHECK_FORMAT_SECURITY:=1
 PKG_USE_MIPS16:=0