USB: Fix definition of function according to previous commit.
[l1-flash/eeprom] Add lock/unlock/eeprom helper routines
stm32: timers: Fix edge polarity setup

The CCxP/CCxNP bits are actually separated by a reserved bit, so the
correct mask is 0xa, (0b1010) not 0x6 (0b0110)

Reported by PyroDevil on the mailinglist
Commonize USB
[USB] Add commonized driver for USB STM32F0 line (prepared for L0)

Pioneer work originally by Kuldeep Singh Dhaka. Code reformatted.

Signed-off-by: Frantisek Burian <BuFran@seznam.cz>
[STM32F0] add support of autotrimming HSI to USB SOF frames

Signed-off-by: Frantisek Burian <BuFran@seznam.cz>
[STM32F0] Add support functions for USB clock setup in F072 chips.

There is remaining an issue with PREDIV connected just after clock multiplexer (only F072). This should be fixed in another commit.