board: ti: am62px: env: include environment for DFU Boot

Include the TI K3 DFU environment to support DFU Boot and DFU Flash.
Also add "usb" to the list of "boot_targets". While at it, add a newline
at the end of the file.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>

board/ti/am62px/am62px.env

@@ -1,5 +1,6 @@
 #include <env/ti/ti_common.env>
 #include <env/ti/mmc.env>
+#include <env/ti/k3_dfu.env>
 
 name_kern=Image
 console=ttyS2,115200n8
@@ -7,7 +8,7 @@ args_all=setenv optargs ${optargs} earlycon=ns16550a,mmio32,0x02800000
 	${mtdparts}
 run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}
 
-boot_targets=mmc1 mmc0 pxe dhcp
+boot_targets=mmc1 mmc0 usb pxe dhcp
 boot=mmc
 mmcdev=1
 bootpart=1:2
@@ -17,4 +18,4 @@ rd_spec=-
 #if CONFIG_BOOTMETH_ANDROID
 #include <env/ti/android.env>
 adtb_idx=3
-#endif
+#endif