svgalib: move fb_get_caps to svgalib

Move fb_get_caps() method to svgalib.c as svga_get_caps() so it can be used by
s3fb, arkfb and vt8623fb.

Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/video/arkfb.c b/drivers/video/arkfb.c
index 9288dd1..ba6fede 100644
--- a/drivers/video/arkfb.c
+++ b/drivers/video/arkfb.c
@@ -919,6 +919,7 @@
 	.fb_fillrect	= arkfb_fillrect,
 	.fb_copyarea	= cfb_copyarea,
 	.fb_imageblit	= arkfb_imageblit,
+	.fb_get_caps    = svga_get_caps,
 };