MIPS: Octeon: Enable C0_UserLocal probing.

Octeon2 processor cores have a UserLocal register.  Remove the hard
coded negative probe and allow the standard probing to detect this
feature.
Signed-off-by: David Daney <david.daney@cavium.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2578/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h

@@ -54,7 +54,6 @@
 #define cpu_has_mips_r2_exec_hazard 0
 #define cpu_has_dsp		0
 #define cpu_has_mipsmt		0
-#define cpu_has_userlocal	0
 #define cpu_has_vint		0
 #define cpu_has_veic		0
 #define cpu_hwrena_impl_bits	0xc0000000