ERR: read_csv with dtype on empty data, #12048.
ERR: read_csv with dtype specified on empty data 

closes #12048.

pls add a whatsnew note in bug-fixes.

also, pls run the asv suite for parsing to see if any perf issues.
 merged via https://github.com/pydata/pandas/commit/ab3291d7ddbe821733f199c6ce414d7a6b9c18e0

thanks!
