colibri_t30: fix spi1 and uart2/3 resp. uartb/c pinmuxing
Fix SPI1 and UART2/3 resp. UARTB/C pinmuxing.
Note: The former was illegally muxing multiple SoC balls onto the same
internal SoC signal which caused rather strange behaviour regarding
the RS232 serial transceiver ForceOFF# pins as available on Iris.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Igor Opaniuk <igor.opaniuk@toradex.com> Signed-off-by: Tom Warren <twarren@nvidia.com>