Revert "CHROMIUM: Intel BT: Update firmware file for Intel Bluetooth 9260"

This reverts commit 7583d1704f7e45c20b2b903e82983e44dd3941a2.

Reason for revert: Known problems with firmware. Reverting to stable.

BUG=b:158845147
TEST=None

Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Change-Id: I73d72ddf24f2ea9cc07db76260045e233d809b0a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/linux-firmware/+/2256133
diff --git a/WHENCE b/WHENCE
index 7855c75..265464f 100755
--- a/WHENCE
+++ b/WHENCE
@@ -2514,13 +2514,13 @@
 File: intel/ibt-17-1.ddc
 Version: BT_JeffersonPeak_A0_B0_REL0201
 File: intel/ibt-18-16-1.sfi
-Version: BT_ThunderPeak_B0_B0_REL6412
+Version: BT_ThunderPeak_B0_B0_REL0538
 File: intel/ibt-18-16-1.ddc
-Version: BT_ThunderPeak_B0_B0_REL6412
+Version: BT_ThunderPeak_B0_B0_REL0538
 File: intel/ibt-18-2.sfi
-Version: BT_ThunderPeak_B0_B0_REL6412
+Version: BT_ThunderPeak_B0_B0_REL0538
 File: intel/ibt-18-2.ddc
-Version: BT_ThunderPeak_B0_B0_REL6412
+Version: BT_ThunderPeak_B0_B0_REL0538
 File: intel/ibt-18-0-1.sfi
 Version: BT_ThunderPeak_A0_B0_REL0186
 File: intel/ibt-18-0-1.ddc
diff --git a/intel/ibt-18-16-1.ddc b/intel/ibt-18-16-1.ddc
index 6e06779..f24bb17 100755
--- a/intel/ibt-18-16-1.ddc
+++ b/intel/ibt-18-16-1.ddc
Binary files differ
diff --git a/intel/ibt-18-16-1.sfi b/intel/ibt-18-16-1.sfi
index fed35ef..b6ccd62 100755
--- a/intel/ibt-18-16-1.sfi
+++ b/intel/ibt-18-16-1.sfi
Binary files differ
diff --git a/intel/ibt-18-2.ddc b/intel/ibt-18-2.ddc
index 6e06779..f24bb17 100755
--- a/intel/ibt-18-2.ddc
+++ b/intel/ibt-18-2.ddc
Binary files differ
diff --git a/intel/ibt-18-2.sfi b/intel/ibt-18-2.sfi
index fed35ef..b6ccd62 100755
--- a/intel/ibt-18-2.sfi
+++ b/intel/ibt-18-2.sfi
Binary files differ