[MIPS] Add Missing R4K Cache Macros to IP27 & IP32

Keeping in accordance with other machines, IP27 and IP32 lack a few
macros.  IP27 lacks cpu_has_4kex & cpu_has_4k_cache macros while IP32
lacks just the cpu_has_4k_cache macro.
Signed-off-by: NJoshua Kinard <kumba@gentoo.org>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

include/asm-mips/mach-ip27/cpu-feature-overrides.h

@@ -31,6 +31,9 @@
 #define cpu_has_nofpuex		0
 #define cpu_has_64bits		1
 
+#define cpu_has_4kex		1
+#define cpu_has_4k_cache	1
+
 #define cpu_has_subset_pcaches	1
 
 #define cpu_dcache_line_size()	32

include/asm-mips/mach-ip32/cpu-feature-overrides.h

@@ -38,6 +38,8 @@
 #define cpu_has_vtag_icache	0
 #define cpu_has_ic_fills_f_dc	0
 #define cpu_has_dsp		0
+#define cpu_has_4k_cache	1
+
 
 #define cpu_has_mips32r1	0
 #define cpu_has_mips32r2	0