[v1.06][ARM] Update get_vpus_width to match SVE detection

src/arm/uarch.c

@@ -314,18 +314,13 @@ int get_vpus_width(struct cpuInfo* cpu) {
   // If the CPU has NEON, width can be 64 or 128 [1].
   // In >= ARMv8, NEON are 128 bits width [2]
   // If the CPU has SVE/SVE2, width can be between 128-2048 [3],
-  // so we must check the exact width depending on
-  // the exact chip (Neoverse V1 uses 256b implementations.)
+  // so we get the exact value from cntb [4]
   //
   // [1] https://en.wikipedia.org/wiki/ARM_architecture_family#Advanced_SIMD_(Neon)
   // [2] https://developer.arm.com/documentation/102474/0100/Fundamentals-of-Armv8-Neon-technology
   // [3] https://www.anandtech.com/show/16640/arm-announces-neoverse-v1-n2-platforms-cpus-cmn700-mesh/5
+  // [4] https://developer.arm.com/documentation/ddi0596/2020-12/SVE-Instructions/CNTB--CNTD--CNTH--CNTW--Set-scalar-to-multiple-of-predicate-constraint-element-count-
 
-  MICROARCH ua = cpu->arch->uarch;
-  switch(ua) {
-    case UARCH_NEOVERSE_V1:
-      return 256;
-    default:
   if (cpu->feat->SVE && cpu->feat->cntb > 0) {
     return cpu->feat->cntb * 8;
   }
@@ -341,7 +336,6 @@ int get_vpus_width(struct cpuInfo* cpu) {
     return 32;
   }
 }
-}
 
 int get_number_of_vpus(struct cpuInfo* cpu) {
   MICROARCH ua = cpu->arch->uarch;