configs/raspberrypi3_qt5we: fix path to in-tree device-tree blob

This fixes commit 51b4421758 (configs/raspberrypi*: bump kernel version
to 17f135b (6.6.28)).

Fixes:

	make[3]: *** No rule to make target 'arch/arm/boot/dts/bcm2710-rpi-3-b.dtb'.  Stop.

Signed-off-by: Gaël PORTAY <gael.portay@rtone.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

configs/raspberrypi3_qt5we_defconfig

@@ -21,7 +21,7 @@ BR2_LINUX_KERNEL_DEFCONFIG="bcm2709"
 
 # Build the DTB from the kernel sources
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
-BR2_LINUX_KERNEL_INTREE_DTS_NAME="bcm2710-rpi-3-b bcm2710-rpi-3-b-plus bcm2710-rpi-cm3"
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="broadcom/bcm2710-rpi-3-b broadcom/bcm2710-rpi-3-b-plus broadcom/bcm2710-rpi-cm3"
 
 BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y