Merge tag 'doc-2023-10-rc3' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request for doc-2023-10-rc3

Documentation:

* Update examples for imx8mp_evk
* OpenOCD debugging guide for TI K3 boards
* Explain using gadget devices on TI boards
* Describe best practices for board ports
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index 577a0b6..3bfdc3f 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -575,11 +575,6 @@
 	return vdd;
 }
 
-__weak int board_switch_core_volt(u32 vdd)
-{
-	return 0;
-}
-
 static int setup_core_volt(u32 vdd)
 {
 	return board_setup_core_volt(vdd);