Ensure interrups are back on BEFORE running code dependant on clock_systimer

Approved-by: Gregory Nutt

Kinetis:Fixed GPIO _PIN_OUTPUT_LOWDRIVE swapped with _PIN_OUTPUT_OPENDRAIN

Approved-by: Gregory Nutt

fixed the debug method selection of ssd1306

Approved-by: Gregory Nutt

fix lpc43_gpdma, largely typos

Approved-by: Gregory Nutt

STM32 OTGFS, STM32 L4 and F7: Adapt Janne Rosberg's patch to STM32 OTGHS host to OTGFS host, and to similar implements for L4 and F7.

STM32 OTGHS host:  stm32_in_transfer() fails and returns NAK if a short transfer is received.  This causes problems from class drivers like CDC/ACM where short packets are expected.  In those protocols, any transfer may be terminated by sending short or NUL packet.

Fixed #if defined

Approved-by: Gregory Nutt

sendfile():  Fix error introduced with commit ff73be87.  Noted by Maciej Wójcik

stm32f33xxx: Add HRTIM header file

Approved-by: Gregory Nutt