Add support for GCC_ARM toolchain in target STM32F103RB
Changed LED mapping to RGB

Changed the pin mapping for LED1, LED2, and LED3, to Red, Green, and Blue respectively. This matches the KL25Z, and makes more sense in my opinion.
[NUCLEO_F053R8] enhance I2C master (stop) and add I2C slave
[LPC11CXX] can_frequency - bug fix

	- link on the mbed issue report: https://mbed.org/users/mbed_official/code/mbed-src/issues/2
Update gpio_api.c

Modified gpio_set() to allow PIO0_0, PIO0_10, and PIO0_15 to be properly configured for GPIO.
These changes solve:
   1) Endianess of TX_DESC_UPDATED_MASK so Tx buffers can be released after tranmission.
   2) Avoid assert( ) failure due uninitialized variable in enet_hal)config_tx_fifo( ) function.

Signed-off-by: Sergio Scaglia <sergio.scaglia@arm.com>
Changed LED mapping to RGB

Changed the pin mapping for LED1, LED2, and LED3, to Red, Green, and Blue respectively. This matches the KL25Z and LPC11U68, and makes more sense in my opinion.
Update gpio_api.c

Modified gpio_set() to allow PIO0_0, PIO0_10, and PIO0_15 to be properly configured for GPIO.
- Added initialization for Tx Fifo values and provided value for TFWR bits in ENET_TFWR register

Signed-off-by: Sergio Scaglia <sergio.scaglia@arm.com>