package/apr: fix non-portable atomics

apr-1.7.0 added support for 8 bytes atomics for 32 bit archs
https://github.com/apache/apr/commit/2f61f960c81e4a45f3849baa7563812e7e526436

We need to adjust our _CONF_OPTS which fixes an apache build error.

Fixes:
http://autobuild.buildroot.net/results/f24/f2461c1ed542e050afd761db5faeaaff1f51775b/

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Reviewed-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/apr/apr.mk

@@ -42,15 +42,10 @@ endif
 # Fix lfs detection when cross compiling
 APR_CONF_ENV += apr_cv_use_lfs64=yes
 
-# Use non-portable atomics when available: 8 bytes atomics are used on
-# 64-bits architectures, 4 bytes atomics on 32-bits architectures. We
-# have to override ap_cv_atomic_builtins because the test used to
-# check for atomic builtins uses AC_TRY_RUN, which doesn't work when
-# cross-compiling.
-ifeq ($(BR2_ARCH_IS_64):$(BR2_TOOLCHAIN_HAS_SYNC_8),y:y)
-APR_CONF_OPTS += --enable-nonportable-atomics
-APR_CONF_ENV += ap_cv_atomic_builtins=yes
-else ifeq ($(BR2_ARCH_IS_64):$(BR2_TOOLCHAIN_HAS_SYNC_4),:y)
+# Use non-portable atomics when available. We have to override
+# ap_cv_atomic_builtins because the test used to  check for atomic
+# builtins uses AC_TRY_RUN, which doesn't work when cross-compiling.
+ifeq ($(BR2_TOOLCHAIN_HAS_SYNC_8),y)
 APR_CONF_OPTS += --enable-nonportable-atomics
 APR_CONF_ENV += ap_cv_atomic_builtins=yes
 else