defconfig: msm8226: enable deferred resume

CONFIG_MMC_DEFERRED_RESUME is enabled with this patch.
This option would defer the resume of emmc/sd card till
a request is received and is aimed at reducing the resume
time of the system.

CRs-Fixed: 625133
Change-Id: Ibec6e759c2cde73df633a99bdf592e73828be91d
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>