update p attribute tests

Author: realqhc

llvm/test/CodeGen/RISCV/attributes.ll

@@ -533,7 +533,7 @@
 ; RV32SUPM: .attribute 5, "rv32i2p1_supm1p0"
 ; RV32SMCTR: .attribute 5, "rv32i2p1_smctr1p0_sscsrind1p0"
 ; RV32SSCTR: .attribute 5, "rv32i2p1_sscsrind1p0_ssctr1p0"
-; RV32P: .attribute 5, "rv32i2p1_p0p14"
+; RV32P: .attribute 5, "rv32i2p1_p0p15"
 
 ; RV64M: .attribute 5, "rv64i2p1_m2p0_zmmul1p0"
 ; RV64ZMMUL: .attribute 5, "rv64i2p1_zmmul1p0"
@@ -698,7 +698,7 @@
 ; RV64SDEXT: .attribute 5, "rv64i2p1_sdext1p0"
 ; RV64SDTRIG: .attribute 5, "rv64i2p1_sdtrig1p0"
 ; RV64XQCCMP: .attribute 5, "rv64i2p1_zca1p0_xqccmp0p3"
-; RV64P: .attribute 5, "rv64i2p1_p0p14"
+; RV64P: .attribute 5, "rv64i2p1_p0p15"
 
 ; RVI20U32: .attribute 5, "rv32i2p1"
 ; RVI20U64: .attribute 5, "rv64i2p1"