Coldfire targets: enable buffered writes by default. Speeds up all sorts of I/O that writes to ports: LCD update (except the functions using DMA on H300), ATA writes, .... Some timings had to be adjusted for the new configuration.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15129 a1c6a512-1295-4272-9138-f99709370657
7 files changed