configs: k3: make consistent bootcmd across all k3 socs

Default to common bootcmd that is set across all k3 devices.

Signed-off-by: Manorit Chawdhry <m-chawdhry@ti.com>
Signed-off-by: Kamlesh Gurudasani <kamlesh@ti.com>
diff --git a/configs/am64x_evm_a53_defconfig b/configs/am64x_evm_a53_defconfig
index 123a700..f792b58 100644
--- a/configs/am64x_evm_a53_defconfig
+++ b/configs/am64x_evm_a53_defconfig
@@ -33,7 +33,7 @@
 CONFIG_SPL_LOAD_FIT=y
 CONFIG_SPL_LOAD_FIT_ADDRESS=0x81000000
 CONFIG_DISTRO_DEFAULTS=y
-CONFIG_BOOTCOMMAND="run findfdt; run envboot; run init_${boot}; run get_kern_${boot}; run get_fdt_${boot}; run run_kern"
+CONFIG_BOOTCOMMAND="run envboot; run distro_bootcmd;"
 CONFIG_BOARD_LATE_INIT=y
 CONFIG_SPL_MAX_SIZE=0x180000
 CONFIG_SPL_HAS_BSS_LINKER_SECTION=y