Added preload instructions to armv6 encoder optimizations. About 5% average speed-up on Tegra2 for VGA@30fps sequence. Change-Id: I41d74737720fb71ce7a316f07555357822f3347e
Adds a new ARMv6 optimized function vp8_sad16x16_armv6 to encoder. Change-Id: Ibbd7edb8b25cb7a5b522d391b1e9a690fe150e57