meta-quanta: gbs: fix command parsing error for SATA present LED

Fix get SATA present command parsing error due to the last
change to the command parsing string

Signed-off-by: George Hung <george.hung@quantatw.com>
Change-Id: I6f0975ec81d2607afe137cf91f279faaa2180bec
diff --git a/meta-gbs/recipes-gbs/gbs-sysinit/files/gbs-sysinit.sh b/meta-gbs/recipes-gbs/gbs-sysinit/files/gbs-sysinit.sh
index 9858404..68adfed 100644
--- a/meta-gbs/recipes-gbs/gbs-sysinit/files/gbs-sysinit.sh
+++ b/meta-gbs/recipes-gbs/gbs-sysinit/files/gbs-sysinit.sh
@@ -122,7 +122,7 @@
     return 1
   fi
   # sata_prsnt_n is active low => value "true" means low
-  if [[ ${sata_prsnt_n} == "true" ]]; then
+  if [[ ${sata_prsnt_n} == "b true" ]]; then
     set_gpio_direction 'HDD_PRSNT_N' low
   else
     set_gpio_direction 'HDD_PRSNT_N' high