Remove all traces of the Galileo board.  That port is not going to happen -- I dont' even have the Galileo board anymore.

More renaming: up_lcdinitialize->board_lcd_initialize, up_lcdgetdev->board_lcd_getdev, up_lcduninitialize->board_lcd_uninitialize

SAMV7: Add SMC register definition header file; SAMV71-Xult: Add an LCD driver.  The initial commit is simply the SAVM4E-EK ILI9375 driver will bogus name changes to ILI9488.

Rename pwm_devinit() to board_pwm_setup().  Add CONFIG_BOARDCTL_PWMTEST that will enable calling board_pwm_setup() from boardctl().  Replace calls to pwm_devinit() in apps/examples/pwm with calls to boardctl().  In all configurations that enable the apps/examples/pwm test, make sure that boardctl() suppoprt is properly enabled.

Update several defconfig files.  Make sure that every defconfig file that requires external graphics initialization also approprietly initializes boardctl().