[MIPS] Move excite_fpga.h to include/asm-mips/mach-excite

excite_fpga.h, like all platform headers, really belongs in the
platform header directory.

Signed-off-by: Thomas Koeller <thomas.koeller@baslerweb.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/basler/excite/excite_fpga.h b/include/asm-mips/mach-excite/excite_fpga.h
similarity index 100%
rename from arch/mips/basler/excite/excite_fpga.h
rename to include/asm-mips/mach-excite/excite_fpga.h