add wallet2.h changes to patch #12

Job	Run time
lib_android (monero)	3m 12s
lib_android (wownero)	3m 29s
lib_darwin (monero)	1m 17s
ios build (monero)	1m 38s
lib_darwin (wownero)	1m 23s
ios build (wownero)	1m 31s
lib_linux (monero)	1m 40s
macos build (monero)	1m 31s
lib_linux (wownero)	1m 46s
lib_mingw (monero)	1m 46s
macos build (wownero)	1m 27s
lib_sailfishos_aarch64 (monero)	1s
lib_mingw (wownero)	1m 53s
lib_sailfishos_aarch64 (wownero)	1s
lib_sailfishos_i486 (monero)	58s
lib_sailfishos_i486 (wownero)	1m 15s
regression_check	0s
test ts library	0s
comment on pr	0s
create single release file	0s
	24m 48s

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