After the refactor with conf- nodes in fitImage, overlaystring wasn't
didn't handle the new conf- nodes in FIT Booting. Fix get_overlaystring
to handle conf- nodes.

Fixes: 837833a724b7 ("environment: ti: Add get_fit_config command to get FIT 
config string")
Reported-by: Aniket Limaye <a-lim...@ti.com>
Signed-off-by: Manorit Chawdhry <m-chawd...@ti.com>
---
Test Logs:
=> setenv name_overlays ti/k3-dt.dtbo ti/k3-dt1.dtbo
=> run get_overlaystring
=> printenv overlaystring
overlaystring=#conf-ti_k3-dt.dtbo#conf-ti_k3-dt1.dtbo
---
Changes in v2:
- Fix tabs
- Link to v1: 
https://lore.kernel.org/r/20230919-b4-upstream-overlaystring-v1-1-4c56e8d66...@ti.com
---
 include/env/ti/ti_common.env | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/include/env/ti/ti_common.env b/include/env/ti/ti_common.env
index e87a41a6590b..bc554fe7ca6d 100644
--- a/include/env/ti/ti_common.env
+++ b/include/env/ti/ti_common.env
@@ -16,9 +16,14 @@ addr_fit=0x90000000
 name_fit=fitImage
 update_to_fit=setenv loadaddr ${addr_fit}; setenv bootfile ${name_fit}
 get_overlaystring=
-       for overlay in $name_overlays;
-       do;
-       setenv overlaystring ${overlaystring}'#'${overlay};
+       for overlay in $name_overlays; do;
+               if test ${boot_fit} -eq 1;
+                       then
+                               setexpr name_fit_overlay gsub / _ 
conf-${overlay};
+                               setenv overlaystring 
${overlaystring}'#'${name_fit_overlay};
+                       else
+                               setenv overlaystring 
${overlaystring}'#'${overlay};
+               fi;
        done;
 get_fit_config=setexpr name_fit_config gsub / _ conf-${fdtfile}
 run_fit=run get_fit_config; bootm 
${addr_fit}#${name_fit_config}${overlaystring}

---
base-commit: 2fe4b54556ea6271237b35de68dc458bfceab94c
change-id: 20230915-b4-upstream-overlaystring-207e28b8c5fb

Best regards,
-- 
Manorit Chawdhry <m-chawd...@ti.com>

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