Add support for aacraid drivers.

Patch was provided by Raghava Aditya.

git-svn-id: https://svn.code.sf.net/p/smartmontools/code/trunk/smartmontools@3893 4ea69e1a-61f1-4043-bf83-b5c94c648137
Fixes for aacraid patch:
aacraid.h: Fix typo which breaks 32-bit build.
os_linux.cpp:  Remove useless member variable afd.
Fix error handling of /proc/devices parsing.
Avoid unsafe sprintf().  Fix help text.

git-svn-id: https://svn.code.sf.net/p/smartmontools/code/trunk/smartmontools@3894 4ea69e1a-61f1-4043-bf83-b5c94c648137
drivedb.h: Toshiba 3.5" MG03ACAxxx (Y) Enterprise HDD

git-svn-id: https://svn.code.sf.net/p/smartmontools/code/trunk/smartmontools@3895 4ea69e1a-61f1-4043-bf83-b5c94c648137