board: ti: am654: select SYS_DISABLE_DCACHE_OPS for arm64 build

AM654 SoC is IO coherent wrt A53 cores, therefore enable
SYS_DISABLE_DCACHE_OPS to avoid cache operations in A53
SPL/U-Boot.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
diff --git a/board/ti/am65x/Kconfig b/board/ti/am65x/Kconfig
index d4b36db..98172c2 100644
--- a/board/ti/am65x/Kconfig
+++ b/board/ti/am65x/Kconfig
@@ -11,6 +11,7 @@
 	bool "TI K3 based AM654 EVM running on A53"
 	select ARM64
 	select SOC_K3_AM6
+	select SYS_DISABLE_DCACHE_OPS
 
 config TARGET_AM654_R5_EVM
 	bool "TI K3 based AM654 EVM running on R5"