pw_build/cmake: Rename _pw_library_multi_value_args
pw_build/cmake: Rename _pw_library_multi_value_args

Renames _pw_library_multi_value_args to
_pw_add_library_multi_value_args to directly match pw_add_library.

Change-Id: I462471d533b79ab43fd963b51500b9f42f60bdbb
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/94129
Commit-Queue: Ewout van Bekkum <638f134dbc68778d6b859fb04a64baea2b00b021@google.com>
Pigweed-Auto-Submit: Ewout van Bekkum <638f134dbc68778d6b859fb04a64baea2b00b021@google.com>
Commit-Queue: Auto-Submit <14637eda5603879df170705285bf30f5996692f0@pigweed.google.com.iam.gserviceaccount.com>
Reviewed-by: Wyatt Hepler <cca3bedb37979eacd157a9bceb473582df8aea1e@google.com>

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