pd: move tDRPHold to after vbus is on
pd: move tDRPHold to after vbus is on

Move tDRPHold timeout to after vbus is on. This makes sure we give
the right amount of time for a dual-role device to recognize that
it should be the UFP.

BUG=none
BRANCH=samus
TEST=make buildall

Change-Id: I8432eb172783c689d636a435073bb86828488b06
Signed-off-by: Alec Berg <1a4429eeda29095a12e19a73405f80f5b7f37a63@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/227720
Reviewed-by: Vincent Palatin <70a9964ec8fd10b0b08fcc8623c2add25ddf99ac@chromium.org>
Reviewed-by: Todd Broch <035f5b1f817cbb94019cec357b99778115602b63@chromium.org>

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