mtd: msm_qpic_nand: Add snapshot of QPIC nand driver

Add snapshot of QPIC nand driver and it's supported files.

This is a snapshot of the QPIC nand driver as of kernel msm-4.14
'commit 5cc17e2cfb19 ("mtd: msm_qpic_nand: Disable Pagescope on
sdxprairie")'.

Change-Id: I994f4432ddd417743a1d7bf27b57755adc90b702
Signed-off-by: Sarthak Garg <sartgarg@codeaurora.org>