defconfig: Add initial defconfig fragment of consolidate for Lahaina

Add initial consolidate defconfig fragment for the lahaina SoC.
Consolidate fragement contains all debug features needed on
top of lahaina_QGKI.config fragement and these flags should not
show significant performance impact. lahaina_debug.config fragment
contains memory debug features, which shows the performance
impact. This enables intenal testing to use the images based on
lahaina-qgki-consoldiate_defconfig defconfig instead of
lahaina-qgki_defconfig defconfig.

Change-Id: I3982e84dbe77abaf3afd741426f6f74ab2db1544
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>