docs(linux): u-boot: Add workaround for OSPI NOR boot failure

OSPI NOR boot fails in 11.01 release. Add a temporary workaround for the
same.

Signed-off-by: Santhosh Kumar K <s-k6@ti.com>

Author: Santhosh Kumar K

source/linux/Foundational_Components/U-Boot/UG-QSPI.rst

@@ -93,6 +93,17 @@ controllers work only in master mode.
     whether or not the OSPI flash part chosen for custom board designs meets all
     the criteria listed at https://e2e.ti.com/support/processors/f/791/t/946418
 
+.. ifconfig:: CONFIG_part_variant in ('AM62PX')
+
+.. important::
+
+    OSPI NOR boot fails in 11.01 release due to the incompatibility of Link
+    Time Optimizations (LTO) with GCC 13.04. So, checkout to following branch
+    and tag as a temporary workaround:
+
+       Branch: ti-u-boot-2025.01
+       Tag: cicd.scarthgap.202507171300
+
 .. rubric:: Driver Features
 
 OSPI controllers supports PHY Calibration in DQS + Double Data Rate (DDR) mode