Allow for arbitrary QSPI alt sizes#11602

Merged

0xc0170 merged 2 commits intoARMmbed:masterfrom

kyle-cypress:pr/qspi-arbitrary-alt-size

Oct 18, 2019

Commits on Oct 16, 2019

Update STM driver changes for clarity
Kyle Kearney
committed
Restore old qspi_alt_size_t values as compatibility macros
Kyle Kearney
committed