tools-sca: improve error message when fdpr not installed
tools-sca: improve error message when fdpr not installed

Improve error message When fdpr-pro or fdpr_wrap is not
installed and add info about where it can be downloaded.

Change-Id: Ia586b61ac5ff941c0b635e261e328cb3bb491396
Signed-off-by: Roberto Oliveira <08b67bf75442cd73e4fb5e4f388cb1d29ff57cb5@linux.vnet.ibm.com>

open-power-sdk/source-code-advisor,open-power-sdk/source-code-advisor