Update notes for submitted changes

* Add optimized S32A_D565_Opaque_Dither blitter.
* Add optimization of Skia S32A_Blend blitter
* Add optimization of Skia S32A_Opaque blitter
* Modify sample buffer size for larger displays.
* Add optimized S16_opaque_D32_nofilter_DX blitter.
* Add shader for Clamp_S32_Opaque_D32_nofilter_DX.
* Add shader for Repeat_SI8_opaque_D32_filter_DX.
* Add shader for Clamp_SI8_opaque_D32_filter_DX.
* Add shader for Clamp_S32_Opaque_D32_filter_DX.
* Revert "Neon optimized implementation of S16_opaque_D32_nofilter_DX"