trivial: Update licenses

All of these files saw significant changes, so we update the license to
reflect this.

libplatsupport,imx: Move HW ops to driver level

Timer resource initialisation and the management of interrupts should
belong in the driver level and not the timer abstraction level. This
commits moves those operations down into the driver level for the i.MX
platforms.

Libplatsupport: Cap the timer counter values if it cannot fit in 32 bits

Trivial: s/<</BIT

plat/imx7: add initial support for imx7 SoC

Remove pstimer from imx gpt

Users interact directly with gpt interface

Fix whitespace

- remove trailing whitespace
- remove duplicate blank lines
- remove blank lines at end of file

fix licenses

platsupport: fix imx gpt reset

It would override the config of the timer in timer_stop, so
timer_start wouldn't work next time.

libplatsupport: Use stubtimer timeout method

Remove a bunch of duplicated code.

libplatsupport: Expand timer properties

Indicate the types of timeout supported in the properties.

libplatsupport: Use stubtimer timeout method

Remove a bunch of duplicated code.

libplatsupport: Expand timer properties

Indicate the types of timeout supported in the properties.