package/libpng: enable neon support for aarch64

NEON support is enabled by default on aarch64, so we
can enable it unconditionaly.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libpng/libpng.mk

@@ -15,7 +15,7 @@ LIBPNG_DEPENDENCIES = host-pkgconf zlib
 HOST_LIBPNG_DEPENDENCIES = host-pkgconf host-zlib
 LIBPNG_CONFIG_SCRIPTS = libpng$(LIBPNG_SERIES)-config libpng-config
 
-ifeq ($(BR2_ARM_CPU_HAS_NEON),y)
+ifeq ($(BR2_ARM_CPU_HAS_NEON)$(BR2_aarch64),y)
 LIBPNG_CONF_OPTS += --enable-arm-neon
 else
 LIBPNG_CONF_OPTS += --disable-arm-neon