defconfig: apq8026_lw: added initial board config for apq8026

derived from msm8226 defconfigs to create inital defconfig for
apq8026_lw

Change-Id: I6a4abeb5671ac4fc8065c55106e0e73e4e6c4d59
Signed-off-by: Tirtha Kanti Ghosh <tirtha@codeaurora.org>