Move objects.h to LPC11XX_11CXX common

Use #if DEVICE_CAN for can_s definition
Move README.md to LPC11XX_11CXX common
Move spi_pinmap.h to LPC11XX_11CXX common

Merge back into spi_api.c. P0_10/SPI_0 (SWCLK) now disabled for both targets
Move adc_pinmap.h to LPC11XX_11CXX common

Merge back into analog_api.c. P1_3/ADC0_4 (SWDIO) now disabled for both targets
Move pwmout_api.c/PeripheralNames.h to LPC11XX_11CXX common

Because CT32B1 (P1_1, P1_2 and P1_3) is used by us_ticker.c for wait and ticker function. Since wait/ticker is commonly used by mbed code and I decided CT32B1 of LPC11XX should only be used for this function, not for PwmOut.
P1_6 and P1_7 are used by UART (USBTX/USBRX) and I think they should not be assigned to other function.
Merge pull request #81 from jorisa/master

Merge common files between LPC11XX and LPC11CXX