fix(arch): Fix a typo that results in failed build of specific architectures. (#4069)
fix(arch): Fix a typo that results in failed build of specific architectures. (#4069)

The "UA_" prefix was omitted in the declarations of 2 architecture wrapper functions, what results in failed build in case any of the affected functions are enabled. Added the prefix to match all other functions.
JGrothoff/open62541,open62541/open62541,jpfr/open62541,StalderT/open62541,jpfr/open62541,StalderT/open62541,jpfr/open62541,JGrothoff/open62541,StalderT/open62541,JGrothoff/open62541,open62541/open62541,open62541/open62541,JGrothoff/open62541,open62541/open62541,jpfr/open62541,StalderT/open62541