usb: gadget: Add snapshot of ChipIdea controller gadget driver

This change adds ci13xxx_msm and ci13xxx_udc drivers which are
required for peripheral support on targets using ChipIdea Core.

This snapshot is taken as of msm-3.18 'commit 4a06b0168aeb ("ANDROID:
sdcardfs: Make WARN_RATELIMIT to pr_debug")'.

This change also fixes the coding style errors.

Change-Id: Ia4c12f7d97e395f63c2199185a93176d342299e3
Signed-off-by: Ajay Agarwal <ajaya@codeaurora.org>