[MIPS] TXx9: rename asm-mips/mach-jmr3927 to asm-mips/mach-tx39xx

Rename mach-jmr3927 directory to more proper name to make adding other
platforms easier.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index c4a3098..3564533 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -548,7 +548,7 @@
 # Common TXx9
 #
 core-$(CONFIG_MACH_TX39XX)	+= arch/mips/txx9/generic/
-cflags-$(CONFIG_MACH_TX39XX) += -Iinclude/asm-mips/mach-jmr3927
+cflags-$(CONFIG_MACH_TX39XX) += -Iinclude/asm-mips/mach-tx39xx
 load-$(CONFIG_MACH_TX39XX)	+= 0xffffffff80050000
 core-$(CONFIG_MACH_TX49XX)	+= arch/mips/txx9/generic/
 cflags-$(CONFIG_MACH_TX49XX) += -Iinclude/asm-mips/mach-tx49xx