When the host and the SDK architectures are incompatible the SDK
installer outputs an incomplete error message "Error: Installation
machine not supported!". This commit adds a more verbose error
message e.g "Error: Incompatible SDK installer! Your host is i686
and this SDK was built for x86_64 hosts."
Signed-off-by: Todor Minchev <todor.minchev@linux.intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>