rambi: fix PP3300_LTE_EN gpio
rambi: fix PP3300_LTE_EN gpio

The gpio table had the wrong pin assigned to
PP3300_LTE_EN. It should be D4 instead of D2.

BUG=chrome-os-partner:24201
BRANCH=None
TEST=Built and booted. Stuff shows up on lsusb, and I can confirm
     3.3V on the bulk caps of the IO board.

Change-Id: I574599645ce21c175346e2ecde35b974aa0b68f7
Signed-off-by: Aaron Durbin <af0622ab041e8b0f8e5819838dcc93898196e71f@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/177694
Reviewed-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Reviewed-by: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>
Commit-Queue: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>

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