boards: mimxrt1010_evk: Add Arduino SPI support

When ever a Ardunio UNO R3 compatible shield will be used
together with the NXP MIMXRT1010-EVK board Zephyr runs into
an DTS parse error because of missing label 'arduino_spi'.

On NXP MIMXRT1010-EVK pin D10 (CS), D11 (MOSI), D12 (MISO) and
D13 (CLK) are always connected to the on-board but not populated
SPI flash in default and can be disconnected optionally. Pin
D10 (CS) will be shared with pin D2 (GPIO/INT0) and is connected
in parallel. Pin D13 (CLK) will be shared with pin D3 (GPIO/PWM)
and is connected in parallel.

Signed-off-by: Stephan Linz <linz@li-pro.net>