MIPS: DEC: Update CPU overrides

Update CPU overrides for the DEC port with the recent additions, shaving
off some effectively dead code:

   text    data      bss      dec     hex filename
5586952  233132  5990368 11810452  b43694 vmlinux.32-old
5581248  233140  5990368 11804756  b42054 vmlinux.32-new

   text    data      bss      dec     hex filename
6036936  356648 10756544 17150128 105b0b0 vmlinux.64-old
6029896  360752 10756544 17147192 105a538 vmlinux.64-new

The data size increase is due to the special alignment requirement of
`init_thread_union' aka `.data..init_task' moving it up to the nearest
page boundary and making the amount of padding at its front rely on how
far within a page text ends.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10197/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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

@@ -14,6 +14,13 @@
 
 /* Generic ones first.  */
 #define cpu_has_tlb			1
+#define cpu_has_tlbinv			0
+#define cpu_has_segments		0
+#define cpu_has_eva			0
+#define cpu_has_htw			0
+#define cpu_has_rixiex			0
+#define cpu_has_maar			0
+#define cpu_has_rw_llb			0
 #define cpu_has_tx39_cache		0
 #define cpu_has_divec			0
 #define cpu_has_prefetch		0
@@ -24,6 +31,7 @@
 #define cpu_has_mips3d			0
 #define cpu_has_smartmips		0
 #define cpu_has_rixi			0
+#define cpu_has_xpa			0
 #define cpu_has_vtag_icache		0
 #define cpu_has_ic_fills_f_dc		0
 #define cpu_has_pindexed_dcache		0
@@ -36,11 +44,18 @@
 #define cpu_has_mips64r1		0
 #define cpu_has_mips64r2		0
 #define cpu_has_dsp			0
+#define cpu_has_dsp2			0
 #define cpu_has_mipsmt			0
 #define cpu_has_userlocal		0
+#define cpu_hwrena_impl_bits		0
+#define cpu_has_perf_cntr_intr_bit	0
+#define cpu_has_vz			0
+#define cpu_has_fre			0
+#define cpu_has_cdmm			0
 
 /* R3k-specific ones.  */
 #ifdef CONFIG_CPU_R3000
+#define cpu_has_3kex			1
 #define cpu_has_4kex			0
 #define cpu_has_3k_cache		1
 #define cpu_has_4k_cache		0
@@ -63,6 +78,7 @@
 
 /* R4k-specific ones.  */
 #ifdef CONFIG_CPU_R4X00
+#define cpu_has_3kex			0
 #define cpu_has_4kex			1
 #define cpu_has_3k_cache		0
 #define cpu_has_4k_cache		1