Update notes for submitted changes

* Initial support for Broadcom VideoCore / BCM21553
Update notes for submitted changes

* Cleanup BCM21553 functions
Update notes for submitted changes

* Bypass skipping of premult. alpha on statusbar for Broadcom GPUs
Update notes for submitted changes

* surfaceflinger: allow surface format selection for NO_RGBX_8888 devices
Update notes for submitted changes

* egl: remove custom bcm21553 tls code
Update notes for submitted changes

* opengl: allow direct TLS access for ARMv6-VFP arch
Update notes for submitted changes

* surfaceflinger: disable 16bpp surface option by default
Update notes for submitted changes

* Revert "opengl: allow direct TLS access for ARMv6-VFP arch"
Update notes for submitted changes

* surfaceflinger: remove hwcomposer workaround for bcm21553 hardware