usb: gadget: Fix section mismatch

WARNING: drivers/usb/gadget/g_android.o(.text+0x323e4): Section
mismatch in reference from the function acc_function_bind() to
the function .init.text:T.2968()
The function acc_function_bind() references
the function __init T.2968().
This is often because acc_function_bind lacks a __init
annotation or the annotation of T.2968 is wrong.

Change-Id: Ic93f1dd8fcfdc4d87fe19811122b46c5bb0e1bc2
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>