testsuite: btf: Fix btf-datasec-1.c for RISC-V

Similar to 37e6564 ("testsuite/101269: fix testcase when used with
-m32"), RISC-V needs to be told not to put symbols in the
sdata/srodata/sbss sections.

gcc/testsuite/ChangeLog

	* gcc.dg/debug/btf/btf-datasec-1.c: Don't use small data on RISC-V.

Author: palmer-dabbelt

gcc/testsuite/gcc.dg/debug/btf/btf-datasec-1.c

@@ -12,6 +12,7 @@
 /* { dg-do compile )  */
 /* { dg-options "-O0 -gbtf -dA" } */
 /* { dg-options "-O0 -gbtf -dA -msdata=none" { target { { powerpc*-*-* } && ilp32 } } } */
+/* { dg-options "-O0 -gbtf -dA -msmall-data-limit=0" { target { riscv*-*-* } } } */
 /* { dg-options "-O0 -gbtf -dA -G0" { target { nios2-*-* } } } */
 
 /* Check for two DATASEC entries with vlen 3, and one with vlen 1.  */