simple-egl: Accomodate EGL_EXT_pixel_format_float

EGLConfig selection for this extension requires an exact match. We don't
especially care, so, say so.
2 jobs for simple-egl-buffer-size in 1 minute and 28 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Container Prep
passed #574069
container_prep

00:00:27

 
  Build
passed #574070
build-native-meson

00:01:00