configs: synquacer: Enable EFI capsule update support

configs: synquacer: Enable EFI capsule update support

Enable EFI capsule update support. With the EFI capsule update,
you can update U-Boot, TF-A and OP-TEE. TF-A and OP-TEE are
usually combined as a FIP binary, but if the binary is bigger
than 480KB, you have to modify FIP header, split the OP-TEE
and stores the OP-TEE binary in the different place. This
configuration supports both cases.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>