db845c: add 64-bit-only build flag TARGET_64BIT_ONLY

TARGET_64BIT_ONLY will be set to false by default, so the default behaviour
isn't changed. To build the userspace as 64bit-only, set it to true.

Change-Id: Id7386a76927a15737d652481033a836ab715f632
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2 files changed