pw_polyfill: add missing dependency
pw_polyfill: add missing dependency

Change-Id: I72d8dab18a0ad61763adc01d5093b65427956ee8

google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed,google/pigweed