aedi: use cmake to build png

aedi/target/library_tier2.py

@@ -150,10 +150,14 @@ class OpusFileTarget(ConfigureMakeStaticDependencyTarget):
         return os.path.exists(state.source + 'opusfile.pc.in')
 
 
-class PngTarget(ConfigureMakeStaticDependencyTarget):
+class PngTarget(CMakeStaticDependencyTarget):
     def __init__(self, name='png'):
         super().__init__(name)
 
+        opts = self.options
+        opts['PNG_ARM_NEON'] = 'on'
+        opts['PNG_SHARED'] = 'OFF'
+
     def prepare_source(self, state: BuildState):
         state.download_source(
             'https://downloads.sourceforge.net/libpng/libpng-1.6.37.tar.xz',