spi: davinci: Make available for build test

There is no build time dependency on the DaVicni or Keystone architecture
support so add an || COMPILE_TEST so we've got better build coverage of the
driver.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230221-spi-arch-deps-v1-4-83d1566474cf@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/Kconfig

@@ -276,7 +276,7 @@ config SPI_COLDFIRE_QSPI
 
 config SPI_DAVINCI
 	tristate "Texas Instruments DaVinci/DA8x/OMAP-L/AM1x SoC SPI controller"
-	depends on ARCH_DAVINCI || ARCH_KEYSTONE
+	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
 	select SPI_BITBANG
 	help
 	  SPI master controller for DaVinci/DA8x/OMAP-L/AM1x SPI modules.