Description of problem:
Frysk has historically not checked the CRC of debuginfo files.  This can result
in a silent mismatch between the executable and debuginfo files.

Risk of applying change:
None.  The work of finding debuginfo and matching CRC is almost entirely on the
elfutils side.

Risk of not applying change:
High for situations where an out of date debuginfo is installed.

Steps to Reproduce:
1. Run the script test-sysroot.sh, which will create a debuginfo with a
mismatched crc

Actual results:
test program exits without hitting the breakpoint

Expected results:
1. Run the test script test-sysroot-crc.sh, which will create a debuginfo with a
matched crc
(fhpd) break main
breakpoint 0 deferred
(fhpd) run
Attached to process 18606
starting/running with this command: /tmp/test-sysroot/usr/bin/tstsysroot 
Running process 18606
(fhpd) Breakpoint 0 main 0x400448
list
[0.0]
     1   int main ()
->   2   {
     3     int x = 1;
     4     return x;
     5   }