ks_bridge: Rename ks_hsic_bridge back to ks_bridge

This permits backwards compatibility with userspace older than
https://www.codeaurora.org/cgit/quic/la/kernel/msm/commit/drivers/usb/misc/ks_bridge.c?h=jb_2.5&id=54aeb828d25f916d23a593162ceb8bd5568da8d2

Will almost surely fail with newer userspaces.
ks_bridge: rename efs_hsic_bridge back to efs_bridge

* See commit 9cea2bfc889c1a30d7984d02a04fe2b84693d1b6 too.

Change-Id: I60a2390b155ed66907909fbd3e04d6f2242de6dd