SAMA5:  Remove kruft in PIO header file
SAMA5 PIO: Add support for secure interrupts; Fix PIO debug output
SAMA5 HSMCI:  Dump GPIO configuration if DEBUG enabled
Fix typos in debug statements
Make variable definitions 'static const' when possible to save RAM usage.  From Kosma Moczek
Correct naming of [U]INT_LEASTn_{MAX|MIN} and [U]INT_FASTn{MAX|MIN}. From Kosma Moczek
Extend erase block size to 18-bits in order (decrease block size to 14-bits) to handle parts with large erase blocks. From Kosma Moczek
Remove empty ADC write method. From Kosma Moczek
 Unconfigure GPIO pins when closing a serial port to prevent back effects from back-powering on the TX pin. From Kosma Moczek
STM32: Move temperature ranges from chip selection configuration prompts. From Kosma Moczek
STM32: Reorder MCUs in choice menu; remove duplicates. From Kosma Moczek
STM32:  Add configuration support fort he STM32F103RC.  From Kosma Moczek
SAM4S Xplained Pro: Correct description of LEDs and usage. From Kosma Moczek
_POSIX_* definitions must have values.  From Kosma Moczek
Updated ChangeLog
SAMA5D4:  Don't touch ISLR unless PIO is configured as an interrupt
SAMA5D3/4: Fix some logic in conversion of physical and virtal DRAM addresses when running out of DRAM
SAM3/4: Important bugfix.  Values read from PIO input pins do not change unless clocking to the PIO block is enabled
Update ChangeLog
Fix typo/compile error introduced with last HSMCI changes