Revert "package/util-linux: bump version to 2.37.3 (fixes CVE-2021-3996, CVE-2021-3995)"

This reverts commit 12dcad48f6bce89adfc9462120b68fcc89b4c615, as it
causes massive build breakage.

Fixes:

  http://autobuild.buildroot.net/results/c2edca241e754566add0fd6b3f049c7945723cfc/
  http://autobuild.buildroot.net/results/27d4aaef1fcffb51fa82b6ad6b0fe303a6d7be33/

package/util-linux/util-linux.hash

@@ -1,5 +1,5 @@
 # From https://www.kernel.org/pub/linux/utils/util-linux/v2.37/sha256sums.asc
-sha256  590c592e58cd6bf38519cb467af05ce6a1ab18040e3e3418f24bcfb2f55f9776  util-linux-2.37.3.tar.xz
+sha256  6a0764c1aae7fb607ef8a6dd2c0f6c47d5e5fd27aa08820abaad9ec14e28e9d9  util-linux-2.37.2.tar.xz
 # License files, locally calculated
 sha256  869660b5269f4f40a8a679da7f403ea3a6e71d46087aab5e14871b09bcb55955  README.licensing
 sha256  9b718a9460fed5952466421235bc79eb49d4e9eacc920d7a9dd6285ab8fd6c6d  Documentation/licenses/COPYING.BSD-3-Clause

package/util-linux/util-linux.mk

@@ -8,7 +8,7 @@
 # util-linux-libs/util-linux-libs.mk needs to be updated accordingly as well.
 
 UTIL_LINUX_VERSION_MAJOR = 2.37
-UTIL_LINUX_VERSION = $(UTIL_LINUX_VERSION_MAJOR).3
+UTIL_LINUX_VERSION = $(UTIL_LINUX_VERSION_MAJOR).2
 UTIL_LINUX_SOURCE = util-linux-$(UTIL_LINUX_VERSION).tar.xz
 UTIL_LINUX_SITE = $(BR2_KERNEL_MIRROR)/linux/utils/util-linux/v$(UTIL_LINUX_VERSION_MAJOR)