Add pvr gles/gles2 context support

include/SDL_config.h.cmake

@@ -481,6 +481,7 @@
 #cmakedefine SDL_IPHONE_LAUNCHSCREEN @SDL_IPHONE_LAUNCHSCREEN@
 
 #cmakedefine SDL_VIDEO_VITA_PIB @SDL_VIDEO_VITA_PIB@
+#cmakedefine SDL_VIDEO_VITA_PVR @SDL_VIDEO_VITA_PVR@
 
 #if !defined(__WIN32__) && !defined(__WINRT__)
 #  if !defined(_STDINT_H_) && !defined(_STDINT_H) && !defined(HAVE_STDINT_H) && !defined(_HAVE_STDINT_H)

include/SDL_egl.h

@@ -26,6 +26,10 @@
  */
 #if !defined(_MSC_VER) && !defined(__ANDROID__)
 
+#if defined(__vita__) || defined(__psp2__)
+#include <psp2/types.h>
+#endif
+
 #include <EGL/egl.h>
 #include <EGL/eglext.h>