defconfig: msm8916: Improvise system resume latency with deferred resume.

Enable the flag CONFIG_MMC_BLOCK_DEFERRED_RESUME to defer eMMC resume
until the actual data request is issued.

Change-Id: I83dc6e8d83a28b21f366ab33a56b2d6e3b61247a
Signed-off-by: Pavan Anamula <pavana@codeaurora.org>
Signed-off-by: Bharat Pawar <bpawar@codeaurora.org>
Signed-off-by: Nirmal Abraham <nabrah@codeaurora.org>