sandbox: capsule: Enable EFI capsule module on sandbox variants

Enable the EFI capsule update code on all sandbox variants. This was
already enabled on the sandbox, sandbox64 and sandbox_flattree
variants. The rest of the variants also have the EFI capsule update
module  enabled now. With this commit, the mkeficapsule tool also gets
enabled on all variants.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/sandbox_vpl_defconfig b/configs/sandbox_vpl_defconfig
index 9ac800a..27354b8 100644
--- a/configs/sandbox_vpl_defconfig
+++ b/configs/sandbox_vpl_defconfig
@@ -255,6 +255,8 @@
 CONFIG_ZSTD=y
 # CONFIG_VPL_LZMA is not set
 CONFIG_ERRNO_STR=y
+CONFIG_EFI_CAPSULE_ON_DISK=y
+CONFIG_EFI_CAPSULE_FIRMWARE_RAW=y
 CONFIG_UNIT_TEST=y
 CONFIG_SPL_UNIT_TEST=y
 CONFIG_UT_TIME=y