Increase timeout to pexpect tests

Change-Id: Ic4d3e89d8263c54ba3d096ebed736be7b96fabb7
Signed-off-by: Saul Romero <saul.romero@arm.com>
diff --git a/script/run_package.sh b/script/run_package.sh
index ec11737..f9c16a9 100755
--- a/script/run_package.sh
+++ b/script/run_package.sh
@@ -326,7 +326,7 @@
 	else
 		timeout=
 	fi
-	timeout="${timeout-600}"
+	timeout="${timeout-1200}"
 
 	full_log="$run_root/uart${u}_full.txt"