Use system call to issue warmReset command

We hit intermittent problems with the existing
g_spawn_command_line_async() call.  Lets just keep
it nice and simple with a system call.  This will
be refactored in story 783 this sprint.

Partially resolves openbmc/openbmc#519

Change-Id: I545578a24e44cd73461af47c6074a618c0d2bad4
Signed-off-by: Andrew Geissler <andrewg@us.ibm.com>
1 file changed