[S] Change in coreboot[master]: Update opensbi submodule to upstream master

[Elyes Haouas (Code Review)]

Elyes Haouas has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74320 )

Change subject: Update opensbi submodule to upstream master
......................................................................

Update opensbi submodule to upstream master

Updating from commit id 5019fd1:
2022-09-01 16:53:28 +0530 - (include: sbi: Reduce includes in sbi_pmu.h)

to commit id 2868f26:
2023-04-07 11:22:25 +0530 - (lib: utils: fdt_fixup: avoid buffer overrun)

This brings in 186 new commits.

Change-Id: I65aa6eb017b0126b7fe335c3b002bb5d59e8a8cb
Signed-off-by: Elyes Haouas 
---
M 3rdparty/opensbi
1 file changed, 19 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/20/74320/1

diff --git a/3rdparty/opensbi b/3rdparty/opensbi
index 5019fd1..2868f26 160000
--- a/3rdparty/opensbi
+++ b/3rdparty/opensbi
@@ -1 +1 @@
-Subproject commit 5019fd124b4c46e1581129c5154fc2cdd3b777ed
+Subproject commit 2868f26131308ff345382084681ea89c5b0159f1