package/mdadm: replace PIE workaround

Replace PIE workaround added by commit
826e0bc3360ac1daa3581232c52ee47697bfabc6 by an upstream patch

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/mdadm/0004-Makefile-Move-pie-to-LDFLAGS.patch

@@ -0,0 +1,40 @@
+From 893a55831e5abbcd15b171db66fa1f389fb61506 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Date: Tue, 7 May 2024 19:32:16 +0200
+Subject: Makefile: Move -pie to LDFLAGS
+
+Move -pie from LDLIBS to LDFLAGS and make LDFLAGS configurable to allow
+the user to drop it by setting their own LDFLAGS (e.g. PIE could be
+enabled or disabled by the buildsystem such as buildroot).
+
+Suggested-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
+Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
+Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
+
+Upstream: https://git.kernel.org/pub/scm/utils/mdadm/mdadm.git/commit/?id=893a55831e5abbcd15b171db66fa1f389fb61506
+---
+ Makefile | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/Makefile b/Makefile
+index 7c221a89..adac7905 100644
+--- a/Makefile
++++ b/Makefile
+@@ -132,12 +132,12 @@ CFLAGS += -DUSE_PTHREADS
+ MON_LDFLAGS += -pthread
+ endif
+ 
+-LDFLAGS = -Wl,-z,now,-z,noexecstack
++LDFLAGS ?= -pie -Wl,-z,now,-z,noexecstack
+ 
+ # If you want a static binary, you might uncomment these
+ # LDFLAGS += -static
+ # STRIP = -s
+-LDLIBS = -ldl -pie
++LDLIBS = -ldl
+ 
+ # To explicitly disable libudev, set -DNO_LIBUDEV in CXFLAGS
+ ifeq (, $(findstring -DNO_LIBUDEV,  $(CXFLAGS)))
+-- 
+cgit 1.2.3-korg
+

package/mdadm/mdadm.mk

@@ -21,7 +21,7 @@ MDADM_BUILD_OPTS = \
 	CXFLAGS="$(MDADM_CXFLAGS)" \
 	CPPFLAGS="$(TARGET_CPPFLAGS) -DBINDIR=\\\"/sbin\\\"" \
 	CHECK_RUN_DIR=0 \
-	LDLIBS=-ldl
+	LDFLAGS=$(TARGET_LDFLAGS)
 
 MDADM_INSTALL_TARGET_OPTS = install-bin