I2C: TWL4030: Move all *_*.c to *-*.c

Rename to use the name style.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --cc drivers/i2c/chips/Makefile
Simple merge

diff --cc drivers/i2c/chips/twl4030-core.c
Simple merge

diff --cc drivers/i2c/chips/twl4030-gpio.c
Simple merge

diff --cc drivers/i2c/chips/twl4030-poweroff.c
Simple merge

diff --cc drivers/i2c/chips/twl4030-usb.c
Simple merge