arm64: defconfig: Enable NXP flexcan driver

Enables driver for FLEXCAN device which is used on a wide range of NXP
SoCs.  Also enabling the related CAN framework.
Signed-off-by: NLi Yang <leoyang.li@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm64/configs/defconfig

@@ -161,6 +161,8 @@ CONFIG_QRTR=m
 CONFIG_QRTR_SMD=m
 CONFIG_QRTR_TUN=m
 CONFIG_BPF_JIT=y
+CONFIG_CAN=m
+CONFIG_CAN_FLEXCAN=m
 CONFIG_BT=m
 CONFIG_BT_HIDP=m
 # CONFIG_BT_HS is not set