greybus: Remove "-gb" suffix from .c files

Some files are prefixed with "gb-" and some are suffixed with "-gb". The
rationale behind the first one is that the modules would be named so, i.e.
gb-*.ko. But there is no reason to keep the "-gb" suffix in the second case.

Remove the unnecessary suffix.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

drivers/staging/greybus/Makefile

@@ -10,12 +10,12 @@ greybus-y :=	core.o		\
 		operation.o
 
 gb-phy-y :=	gpb.o		\
-		sdio-gb.o	\
-		uart-gb.o	\
-		pwm-gb.o	\
-		gpio-gb.o	\
-		i2c-gb.o	\
-		usb-gb.o
+		sdio.o	\
+		uart.o	\
+		pwm.o	\
+		gpio.o	\
+		i2c.o	\
+		usb.o
 
 obj-m += greybus.o
 obj-m += gb-phy.o