add new driver for mma8452, which is simpler.

git-svn-id: https://192.168.1.10:1230/svn/kernel@21 fe49f5b3-f700-de4c-8f4e-3636014279d1
#fix error
add "mma8x5x.c" to svn list

git-svn-id: https://192.168.1.10:1230/svn/kernel@22 fe49f5b3-f700-de4c-8f4e-3636014279d1
1.add oled12864 module, spi bus and gpio tested. but it's full functional.
2.modify new mma8452 driver so that it report the right value

git-svn-id: https://192.168.1.10:1230/svn/kernel@23 fe49f5b3-f700-de4c-8f4e-3636014279d1