CPU (Linux): detect bios limited frequency and print it by default

To match neofetch's behavior

Fix #947

src/detection/cpu/cpu.h

@@ -22,12 +22,12 @@ typedef struct FFCPUResult
     double frequencyBase; // GHz
     double frequencyMax; // GHz
     double frequencyMin; // GHz
+    double frequencyBiosLimit; // GHz
 
     FFCPUCore coreTypes[16]; // number of P cores, E cores, etc.
 
     double temperature;
 } FFCPUResult;
 
-const char* ffCPUDetectByCpuid(FFCPUResult* cpu);
 const char* ffDetectCPU(const FFCPUOptions* options, FFCPUResult* cpu);
 const char* ffCPUAppleCodeToName(uint32_t code);