Temporarily disabled NEON optimizations added for bug 4365

The ABGR to ARGB blit results in an empty surface, this needs to be looked at.

configure

@@ -1625,7 +1625,7 @@ Optional Features:
   --enable-libsamplerate-shared
                           dynamically load libsamplerate [[default=yes]]
   --enable-arm-simd       use SIMD assembly blitters on ARM [[default=yes]]
-  --enable-arm-neon       use NEON assembly blitters on ARM [[default=yes]]
+  --enable-arm-neon       use NEON assembly blitters on ARM [[default=no]]
   --enable-video-wayland  use Wayland video driver [[default=yes]]
   --enable-video-wayland-qt-touch
                           QtWayland server support for Wayland video driver
 if test "${enable_arm_neon+set}" = set; then :
   enableval=$enable_arm_neon; enable_arm_neon=$enableval
 else
-  enable_arm_neon=yes
+  enable_arm_neon=no
 fi
 
     if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_arm_neon = xyes; then

configure.ac

@@ -1344,8 +1344,8 @@ dnl Check for ARM NEON instruction support using gas syntax
 CheckNEON()
 {
     AC_ARG_ENABLE(arm-neon,
-AC_HELP_STRING([--enable-arm-neon], [use NEON assembly blitters on ARM [[default=yes]]]),
-                  enable_arm_neon=$enableval, enable_arm_neon=yes)
+AC_HELP_STRING([--enable-arm-neon], [use NEON assembly blitters on ARM [[default=no]]]),
+                  enable_arm_neon=$enableval, enable_arm_neon=no)
     if test x$enable_video = xyes -a x$enable_assembly = xyes -a x$enable_arm_neon = xyes; then
         save_CFLAGS="$CFLAGS"
         have_arm_neon=no