feat(data/gpu): compute fp32_tflops for 53 single-GPU cards

Derived deterministically from on-record specs: shaders (cuda_cores or
stream_processors) x 2 (FMA) x boost_clock_mhz / 1e6, rounded to 3 dp.
Matches published figures exactly (HD 5770=1.36, HD 6850=1.49, A40=37.4).
Coverage 56% -> 72%.

Excluded by design (formula invalid / ambiguous convention):
- Dual-GPU boards (9800 GX2, GTX 295, GTX 590, HD 4870 X2, GB200) - dataset
  stores per-GPU fp32 but total shader count, so naive calc double-counts.
- Moore Threads MTT S60/S3000/S4000 - MUSA arch is not 2-FLOP/clock/lane
  (computed 28.7 vs published ~25 for S4000).

Author: Seungpyo1007

data/gpu/amd/2009/consumer/radeon-hd-5770.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": null,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 1.36,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_HD_5000_series",

data/gpu/amd/2010/consumer/radeon-hd-5670.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": null,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 0.62,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_HD_5000_series",

data/gpu/amd/2010/consumer/radeon-hd-6850.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": null,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 1.488,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_HD_6000_series",

data/gpu/amd/2011/consumer/radeon-hd-6790.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": null,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 1.344,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_HD_6000_series",

data/gpu/amd/2012/consumer/radeon-hd-7750.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": 214,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 0.819,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_HD_7000_series",

data/gpu/amd/2012/consumer/radeon-hd-7770.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": null,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 1.28,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_HD_7000_series",

data/gpu/amd/2012/consumer/radeon-hd-7870.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": null,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 2.56,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_HD_7000_series",

data/gpu/amd/2017/consumer/radeon-rx-550.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": 546,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 1.211,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_RX_500_series",

data/gpu/amd/2019/consumer/radeon-rx-5500.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": null,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 4.835,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_RX_5000_series",

data/gpu/amd/2022/consumer/radeon-rx-6500.json

@@ -23,7 +23,7 @@
   "timespy_extreme_score": null,
   "speedway_score": null,
   "octanebench_score": null,
-  "fp32_tflops": null,
+  "fp32_tflops": 5.356,
   "verified": false,
   "source_urls": [
     "https://en.wikipedia.org/wiki/Radeon_RX_6000_series",