run-build.sh: Re-run spe cmake config command only when error occurs

SPE cmake config command should only be re-run when there is config
error in the first time. It is redundant to re-run every time even
though there is no error with the first spe cmake config command.
Also, the build path is fixed in this patch.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: Ic2e8a92afe1be41bc515f613a0b677b3e18b1e9d
1 file changed