Update toolchain gcc-linaro-arm-linux-gnueabihf-4.8-2014.02
Revert "test: GCC 4.8 changes (not sure)"

This reverts commit 5c44161fc76556ea5823d297848ae5a7d857f6cd.
test: -O3 optimization fix in GCC 4.8

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56888
ramdisk: zRAM: only read one page at a time