libc/glibc: add log messages for glibc addons dirs and symlinks

Signed-off-by: "Esben Haabendal" <esben.haabendal@prevas.dk>
[yann.morin.1998@anciens.enib.fr: fix linewrap-carnage]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

 # Alpha specific configuration file

 ## select ARCH_SUPPORTS_32

 ## select ARCH_DEFAULT_32

 ## select ARCH_USE_MMU

 ## select ARCH_SUPPORT_CPU

 ## select ARCH_SUPPORT_TUNE

 ##

 ## help The Alpha architecture.