Tiny code cleanup in i2c.c
Tiny code cleanup in i2c.c

BUG=none
TEST=none

Signed-off-by: Bill Richardson <wfrichar@chromium.org>

Change-Id: Ibce7c92767d2a65b992a1e629057cc52c7156a20

longsleep/ec,gelraen/cros-ec,fourier49/BZ_DEV_EC,md5555/ec,alterapraxisptyltd/chromium-ec,akappy7/ChromeOS_EC_LED_Diagnostics,gelraen/cros-ec,thehobn/ec,coreboot/chrome-ec,alterapraxisptyltd/chromium-ec,akappy7/ChromeOS_EC_LED_Diagnostics,fourier49/BIZ_EC,eatbyte/chromium-ec,eatbyte/chromium-ec,fourier49/BZ_DEV_EC,coreboot/chrome-ec,akappy7/ChromeOS_EC_LED_Diagnostics,thehobn/ec,md5555/ec,fourier49/BIZ_EC,fourier49/BIZ_EC,gelraen/cros-ec,longsleep/ec,coreboot/chrome-ec,alterapraxisptyltd/chromium-ec,fourier49/BZ_DEV_EC,md5555/ec,mtk09422/chromiumos-platform-ec,mtk09422/chromiumos-platform-ec,fourier49/BZ_DEV_EC,mtk09422/chromiumos-platform-ec,eatbyte/chromium-ec,alterapraxisptyltd/chromium-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,thehobn/ec,mtk09422/chromiumos-platform-ec,akappy7/ChromeOS_EC_LED_Diagnostics,akappy7/ChromeOS_EC_LED_Diagnostics,md5555/ec,eatbyte/chromium-ec,gelraen/cros-ec,longsleep/ec,fourier49/BIZ_EC,thehobn/ec,longsleep/ec