gimble: tune PS8815 parameter for RX
gimble: tune PS8815 parameter for RX

The parameters were tuned depending on type-c RX test

BRANCH=none
BUG=b:204719059
TEST=make -j BOARD=gimble

Signed-off-by: Will Tsai <7b3a2764695a2e44000ae6070fceccd181e4303d@wistron.corp-partner.google.com>
Change-Id: Iddda0a56317bee39ad7038dbab9b67dc0ecea7dc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3251215
Reviewed-by: caveh jalali <08e24a66aefda7a55ca7d73f8903e0fb16eec763@chromium.org>
Reviewed-by: Boris Mittelberg <46897f4fb5cad4b1d5146ad1fd460d7f4825bbf7@google.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec