bios: fix systemd service file

Restart=always

The current configuration is invalid [1].

References:
[1] https://www.freedesktop.org/software/systemd/man/latest/systemd.service.html

Change-Id: I311282d72bbe1db206bc672feab2d873f706f8c3
Signed-off-by: Alexander Hansen <alexander.hansen@9elements.com>
diff --git a/bios/xyz.openbmc_project.Software.BIOS.service b/bios/xyz.openbmc_project.Software.BIOS.service
index c26f1f2..e57fd55 100644
--- a/bios/xyz.openbmc_project.Software.BIOS.service
+++ b/bios/xyz.openbmc_project.Software.BIOS.service
@@ -6,7 +6,7 @@
 After=xyz.openbmc_project.EntityManager.service
 
 [Service]
-Restart=yes
+Restart=always
 Type=oneshot
 RemainAfterExit=no
 ExecStart=/usr/bin/phosphor-bios-software-update