tenderloin_defconfig: Enable FRANDOM
arm: Add a config option to use GLibC memcpy and memmove versions

Give the possibility to use GLibC memcpy and memmove versions by
properly setting the new config option CONFIG_ARM_USE_GLIBC_MEMCOPY.

Conflicts:

	arch/arm/lib/Makefile
tenderloin_defconfig: Enable ARM_USE_GLIBC_MEMCOPY