usb.rc: Remove write permissions from uvc specific files

Files created by the uvc driver gives write permissions to 'other' by
default. This permission is not needed at runtime. To minimize write
privileges, this CL removes other's write permission from all uvc config
files that had it.

Bug: 242344229
Test: Manually verified that no files have other-write permissions
Change-Id: I67d504fa924f90f3a54dab5264ab1609050f5dd5
1 file changed