libunwind: always depend on libatomics-ops

- Depend on libatomics-ops unconditionally for all archs, as it's used by more
  than just arm, and currently the configure script auto-detects and enables
  its use based on the existence of its header, resulting in non-deterministic
  builds.
- Drop the ldflags bits which link against libatomic_ops, because libunwind
  doesn't actually link against it, nor does it need to, as it currently uses
  all inline functions from the header file.

(From OE-Core rev: 83bb89502e2f05b8b78b14532ad96abc400ab264)

(From OE-Core rev: e43a47eb695050d04809ff54af14066acba6ec27)

Signed-off-by: Christopher Larson <kergoth@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/libunwind/libunwind.inc

@@ -2,6 +2,7 @@ DESCRIPTION = "a portable and efficient C programming interface (API) to determi
 HOMEPAGE = "http://www.nongnu.org/libunwind"
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=3fced11d6df719b47505837a51c16ae5"
+DEPENDS += "libatomics-ops"
 
 SRC_URI = "${SAVANNAH_NONGNU_MIRROR}/${BPN}/${BPN}-${PV}.tar.gz"
 
@@ -18,11 +19,6 @@ ATOMICOPS_armv5 = "-DAO_USE_PTHREAD_DEFS=1"
 ATOMICOPS_armv4 = "-DAO_USE_PTHREAD_DEFS=1"
 ATOMICOPS ?= ""
 
-LDFLAGS += "${LIBATOMICS}"
-LIBATOMICS_armv5 = "-latomic_ops"
-LIBATOMICS_armv4 = "-latomic_ops"
-LIBATOMICS ?= ""
-
 LDFLAGS_append_x86 = " -fuse-ld=gold"
 LDFLAGS_append_x86-64 = " -fuse-ld=gold"
 
@@ -32,9 +28,4 @@ LDFLAGS_append_aarch64 = " -fuse-ld=gold"
 LDFLAGS_append_powerpc = " -fuse-ld=gold"
 LDFLAGS_append_powerpc64 = " -fuse-ld=gold"
 
-DEPENDS += "${DEPLIBATOMICS}"
-DEPLIBATOMICS_armv5 = "libatomics-ops"
-DEPLIBATOMICS_armv4 = "libatomics-ops"
-DEPLIBATOMICS ?= ""
-
 BBCLASSEXTEND = "native"