Update AcpiTables submodule

c0b8b71: Polaris: Fixed Backlight Adjustment by Teguh Sobirin

diff --git a/sdm845Pkg/AcpiTables b/sdm845Pkg/AcpiTables
index 541cfcd3bb8920f5f91df82ac5a100efd74ba528..c0b8b7128b568dfb90e45442351c6901d53f6fa6 160000 (submodule)
--- a/sdm845Pkg/AcpiTables
+++ b/sdm845Pkg/AcpiTables
@@ -1 +1 @@
-Subproject commit 541cfcd3bb8920f5f91df82ac5a100efd74ba528
+Subproject commit c0b8b7128b568dfb90e45442351c6901d53f6fa6