xtensa: use generic vga.h

What xtensa has in asm/vga.h is the same as what can be found in
asm-generic/vga.h.  So use the latter header.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Jiri Slaby <[email protected]>
Acked-by: Max Filippov <[email protected]>
Cc: Chris Zankel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: Jiri Slaby

arch/xtensa/include/asm/Kbuild

@@ -26,5 +26,6 @@ generic-y += rwsem.h
 generic-y += sections.h
 generic-y += topology.h
 generic-y += trace_clock.h
+generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h