riscv: Update ulps

Generated with make regen-ulps using gcc14 on a visionfive2 SBC.

Signed-off-by: Khem Raj <raj.khem@gmail.com>

sysdeps/riscv/rvd/libm-test-ulps

@@ -1263,8 +1263,8 @@ double: 3
 ldouble: 1
 
 Function: "log2p1":
-double: 1
-float: 1
+double: 2
+float: 2
 ldouble: 3
 
 Function: "log2p1_downward":
@@ -1278,9 +1278,9 @@ float: 2
 ldouble: 2
 
 Function: "log2p1_upward":
-double: 1
+double: 2
 float: 2
-ldouble: 2
+ldouble: 3
 
 Function: "log_downward":
 ldouble: 1