MIPS: fix Select HAVE_IRQ_EXIT_ON_IRQ_STACK patch.

BugLink: http://bugs.launchpad.net/bugs/1687629

Commit f017e58d which was commit
3cc3434f upstream, was misapplied to the
4.4 stable kernel.

This patch fixes this and moves the chunk to the proper Kconfig area.
Reported-by: "Maciej W. Rozycki" <macro@linux-mips.org>
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Jason A. Donenfeld <jason@zx2c4.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>

arch/mips/Kconfig

@@ -1413,7 +1413,7 @@ config CPU_MIPS32_R6
 	select CPU_SUPPORTS_MSA
 	select GENERIC_CSUM
 	select HAVE_KVM
-	select MIPS_O32_FP64_SUPPORT if 32BIT
+	select MIPS_O32_FP64_SUPPORT
 	help
 	  Choose this option to build a kernel for release 6 or later of the
 	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
@@ -1464,7 +1464,7 @@ config CPU_MIPS64_R6
 	select CPU_SUPPORTS_HIGHMEM
 	select CPU_SUPPORTS_MSA
 	select GENERIC_CSUM
-	select MIPS_O32_FP64_SUPPORT if MIPS32_O32
+	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
 	help
 	  Choose this option to build a kernel for release 6 or later of the
 	  MIPS64 architecture.  New MIPS processors, starting with the Warrior