Installation via DKMS

This replaces install.sh/uninstall.sh with script installing sources into
/usr/src and adding them as DKMS module.

Using DKMS ensures MPSS drivers are installed & built on every kernel update.

See: http://linux.dell.com/dkms/manpage.html

Previous manual installation provided if no DKMS found:
  make && sudo make install

Help it provided by:
  ./install --help
Use empty (root) prefix by default and MIC_CARD_ARCH=k1om