configs: am65x_evm_r5_defconfig: Enable AVS class 0 support

Enable AVS class 0 support for the R5 SPL bootloader.
Signed-off-by: NTero Kristo <t-kristo@ti.com>
Signed-off-by: NKeerthy <j-keerthy@ti.com>

configs/am65x_evm_r5_defconfig

@@ -99,3 +99,4 @@ CONFIG_TIMER=y
 CONFIG_SPL_TIMER=y
 CONFIG_OMAP_TIMER=y
 CONFIG_FS_FAT_MAX_CLUSTSIZE=16384
+CONFIG_K3_AVS0=y