MAX32630FTHR gets BLE, uses timer peripheral 5 for HCI timing
libexactLE update for 610,620
Fixup hal_sleep and hal_deepsleep for 620
LEDn outputs now forced to open-drain
Add sleep/deepsleep functions to platform layer which are replacing HAL
functions with the same name, rename existing symbols in HAL layer
to hal_sleep/hal_deepsleep. This way sleep functions
are always available, even if target doesn't implement them, which makes
the code using sleep clearer. It also enables us to make decision on in
which builds (debug/release) the sleep will be enabled.