ARM: imx_v6_v7_defconfig: enable bpf syscall and cgroup bpf

Enable CONFIG_BPF_SYSCALL and CONFIG_CGROUP_BPF to allow for systemd
interoperability. This avoids the following failure on boot:

[   10.615914] systemd[1]: system-getty.slice: unit configures an IP
 firewall, but the local system does not support BPF/cgroup firewalling.

Signed-off-by: Marcel Ziswiler <[email protected]>
Reviewed-by: Fabio Estevam <[email protected]>
Signed-off-by: Shawn Guo <[email protected]>

Author: ziswiler

arch/arm/configs/imx_v6_v7_defconfig

@@ -2,11 +2,13 @@ CONFIG_KERNEL_LZO=y
 CONFIG_SYSVIPC=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BPF_SYSCALL=y
 CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=18
 CONFIG_CGROUPS=y
+CONFIG_CGROUP_BPF=y
 CONFIG_RELAY=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_EXPERT=y