arm64: dts: ti: Enable overlays for all DTB files

Allow overlays to be applied to any DTB without manually enabling it
for each file. This adds around ~10% to the total size of the DTB files
on average.

Signed-off-by: Andrew Davis <afd@ti.com>
Acked-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20250702145314.71996-1-afd@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

Author: glneo

arch/arm64/boot/dts/ti/Makefile

@@ -278,24 +278,4 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-j784s4-evm-usxgmii-exp1-exp2.dtb
 
 # Enable support for device-tree overlays
-DTC_FLAGS_k3-am625-beagleplay += -@
-DTC_FLAGS_k3-am625-phyboard-lyra-rdk += -@
-DTC_FLAGS_k3-am62a7-phyboard-lyra-rdk += -@
-DTC_FLAGS_k3-am625-sk += -@
-DTC_FLAGS_k3-am62-lp-sk += -@
-DTC_FLAGS_k3-am62a7-sk += -@
-DTC_FLAGS_k3-am62p5-sk += -@
-DTC_FLAGS_k3-am642-evm += -@
-DTC_FLAGS_k3-am642-phyboard-electra-rdk += -@
-DTC_FLAGS_k3-am642-tqma64xxl-mbax4xxl += -@
-DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@
-DTC_FLAGS_k3-am68-sk-base-board += -@
-DTC_FLAGS_k3-am69-sk += -@
-DTC_FLAGS_k3-j7200-common-proc-board += -@
-DTC_FLAGS_k3-j721e-common-proc-board += -@
-DTC_FLAGS_k3-j721e-evm-pcie0-ep += -@
-DTC_FLAGS_k3-j721e-sk += -@
-DTC_FLAGS_k3-j721s2-common-proc-board += -@
-DTC_FLAGS_k3-j722s-evm += -@
-DTC_FLAGS_k3-j784s4-evm += -@
-DTC_FLAGS_k3-j742s2-evm += -@
+DTC_FLAGS := -@