configs: lx2160a: Enable FSPI_AHB_EN_4B config

Enable 4-byte Fast Read command for Flexspi AHB mode

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/configs/lx2160ardb_tfa_defconfig b/configs/lx2160ardb_tfa_defconfig
index a0a4296..f6cf1ac 100644
--- a/configs/lx2160ardb_tfa_defconfig
+++ b/configs/lx2160ardb_tfa_defconfig
@@ -4,6 +4,7 @@
 CONFIG_SYS_TEXT_BASE=0x82000000
 CONFIG_SYS_MALLOC_F_LEN=0x6000
 CONFIG_EMC2305=y
+CONFIG_FSPI_AHB_EN_4BYTE=y
 CONFIG_ENV_SIZE=0x2000
 CONFIG_ENV_OFFSET=0x500000
 CONFIG_NR_DRAM_BANKS=3