This patch, based on Linaro's Cortex Strings library, adds
an assembly optimized strlen() and strnlen() functions.
Signed-off-by: NZhichang Yuan <zhichang.yuan@linaro.org>
Signed-off-by: NDeepak Saxena <dsaxena@linaro.org>
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>