Vita porting

src/platform/vita/sm.ini

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+[General]
+# Automatically save state on quit and reload on start
+Autosave = 0
+
+# Disable the SDL_Delay that happens each frame (Gives slightly better perf if your
+# display is set to exactly 60hz)
+DisableFrameDelay = 1
+
+[Graphics]
+# Window size ( Auto or WidthxHeight )
+WindowSize = 960x544
+
+# Window scale (1=100%, 2=200%, 3=300%, etc.)
+WindowScale = 1
+
+# Use an optimized (but potentially more buggy) SNES PPU implementation
+NewRenderer = 1
+
+# Display the world map with higher resolution
+EnhancedMode7 = 0
+
+# Don't keep the aspect ratio
+IgnoreAspectRatio = 1
+
+# Enable this option to remove the sprite limits per scan line
+NoSpriteLimits = 0
+
+[Sound]
+EnableAudio = 1
+
+# DSP frequency in samples per second (e.g. 48000, 44100, 32000, 22050, 11025)
+AudioFreq = 48000
+
+# number of separate sound channels (1=mono, 2=stereo)
+AudioChannels = 2
+
+# Audio buffer size in samples (power of 2; e.g., 4096, 2048, 1024) [try 1024 if sound is crackly]. The higher the more lag before you hear sounds.
+AudioSamples = 512
+
+[GamepadMap]
+# Any keys used in KeyMap can be used also in this section.
+# The shoulder button is called L1/Lb and L2, and the thumbstick button is called L3
+Controls = DpadUp, DpadDown, DpadLeft, DpadRight, Back, Start, B, A, Y, X, Lb, Rb
+