Bugfix: SFDP Sector Map Param Tbl size is variable
Bugfix: SFDP Sector Map Param Tbl size is variable

Earlier it was assumed that the table has a certain max length but that
isn't true.

kjbracey-arm/mbed,mbedmicro/mbed,mbedmicro/mbed,mbedmicro/mbed,mbedmicro/mbed,mbedmicro/mbed,kjbracey-arm/mbed,kjbracey-arm/mbed,kjbracey-arm/mbed