etphidiap: indent wrapped lines where possible

BUG=none
TEST=none

Change-Id: I56abb73c27a71df0c833301fc03f16f6ecf9ed68
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_updater/+/2796156
Tested-by: Harry Cutts <hcutts@chromium.org>
Auto-Submit: Harry Cutts <hcutts@chromium.org>
Commit-Queue: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Sean O'Brien <seobrien@chromium.org>