misc: Rename drivers/misc/qti to drivers/misc/qcom

We are using 'qcom' now for DT, file and directory names so rename
drivers/misc/qti to drivers/misc/qcom and fixup related files and path
issues.

Change-Id: Ieeeb7e5683bea0d285de64561a0a6261a8d8d5b7
Signed-off-by: Kumar Gala <galak@codeaurora.org>