sys-apps/util-linux-2.37.1: fix lscpu segfault on some arches

Observed on rv64 but could in princple happen elsewhere too.

Bug: https://bugs.gentoo.org/802606
Signed-off-by: Marek Szuba <marecki@gentoo.org>

sys-apps/util-linux/files/util-linux-2.37.1-lscpu_nullptr.patch

@@ -0,0 +1,26 @@
+If you call a function which can return a null pointer you probably want
+to check the return value before attempting to dereference it. </sarcasm>
+
+--- a/sys-utils/lscpu.c
++++ b/sys-utils/lscpu.c
+@@ -966,7 +966,7 @@
+ 		*(p - 2) = '\0';
+ 		add_summary_s(tb, sec, _("CPU op-mode(s):"), buf);
+ 	}
+-	if (ct->addrsz)
++	if (ct && ct->addrsz)
+ 		add_summary_s(tb, sec, _("Address sizes:"), ct->addrsz);
+ #if !defined(WORDS_BIGENDIAN)
+ 	add_summary_s(tb, sec, _("Byte Order:"), "Little Endian");
+@@ -1008,9 +1008,9 @@
+ 	sec = NULL;
+ 
+ 	/* Section: cpu type description */
+-	if (ct->vendor)
++	if (ct && ct->vendor)
+ 		sec = add_summary_s(tb, NULL, _("Vendor ID:"), ct->vendor);
+-	if (ct->bios_vendor)
++	if (ct && ct->bios_vendor)
+ 		add_summary_s(tb, sec, _("BIOS Vendor ID:"), ct->bios_vendor);
+ 
+ 	for (i = 0; i < cxt->ncputypes; i++)

sys-apps/util-linux/util-linux-2.37.1.ebuild

@@ -86,6 +86,10 @@ RESTRICT="!test? ( test )"
 
 S="${WORKDIR}/${MY_P}"
 
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.37.1-lscpu_nullptr.patch
+)
+
 src_prepare() {
 	default