* qtwayland: Use default LICENSE and LIC_FILES_CHKSUM
* license texts were added in qtwayland commit 26bdc66fe6c4499332b2ead886a806d09aa07a8a
* qtdeclarative, qtserialport: Update QT_MODULE_BRANCH
* SHA-1 of v5.2.1 tag is only in release branch
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>