video: fbdev: pxa168fb: add COMPILE_TEST support

Add COMPILE_TEST support to pxa168fb driver for better compile
testing coverage.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

drivers/video/fbdev/Kconfig

@@ -1730,7 +1730,8 @@ config FB_68328
 
 config FB_PXA168
 	tristate "PXA168/910 LCD framebuffer support"
-	depends on FB && (CPU_PXA168 || CPU_PXA910)
+	depends on FB && HAVE_CLK && HAS_IOMEM
+	depends on CPU_PXA168 || CPU_PXA910 || COMPILE_TEST
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT