reprice gas for BLS pre-compiles

Author: gurukamath

src/ethereum/prague/vm/gas.py

@@ -66,6 +66,12 @@
 GAS_INIT_CODE_WORD_COST = 2
 GAS_BLOBHASH_OPCODE = Uint(3)
 GAS_POINT_EVALUATION = Uint(50000)
+GAS_BLS_G1_ADD = Uint(375)
+GAS_BLS_G1_MUL = Uint(12000)
+GAS_BLS_G1_MAP = Uint(5500)
+GAS_BLS_G2_ADD = Uint(600)
+GAS_BLS_G2_MUL = Uint(22500)
+GAS_BLS_G2_MAP = Uint(23800)
 
 TARGET_BLOB_GAS_PER_BLOCK = U64(786432)
 GAS_PER_BLOB = Uint(2**17)