No point in checking cpu_has_tlb before we've computed the CPU options.

So for now we just unconditionally set the option - Linux wouldn't
work without a TLB anyway.
    
Setting MIPS_CPU_4KTLB was missing for Alchemy and Sandcraft, add that
back.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/kernel/cpu-probe.c

@@ -509,7 +509,6 @@ static inline void decode_configs(struct cpuinfo_mips *c)
 static inline void cpu_probe_mips(struct cpuinfo_mips *c)
 {
 	decode_configs(c);
-	if (cpu_has_tlb)
 	c->options |= MIPS_CPU_4KTLB;
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_4KC:
@@ -544,6 +543,7 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c)
 static inline void cpu_probe_alchemy(struct cpuinfo_mips *c)
 {
 	decode_configs(c);
+	c->options |= MIPS_CPU_4KTLB;
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_AU1_REV1:
 	case PRID_IMP_AU1_REV2:
@@ -574,6 +574,7 @@ static inline void cpu_probe_alchemy(struct cpuinfo_mips *c)
 static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
 {
 	decode_configs(c);
+	c->options |= MIPS_CPU_4KTLB;
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_SB1:
 		c->cputype = CPU_SB1;
@@ -588,7 +589,6 @@ static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
 static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c)
 {
 	decode_configs(c);
-	if (cpu_has_tlb)
 	c->options |= MIPS_CPU_4KTLB;
 	switch (c->processor_id & 0xff00) {
 	case PRID_IMP_SR71000: