package/riscv-isa-sim: fix typo in comment

Fix typo in comment added by commit
ea033cecf990ed3f86619647523a9ad2ccb09adb

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/riscv-isa-sim/Config.in.host

@@ -1,6 +1,6 @@
 config BR2_PACKAGE_HOST_RISCV_ISA_SIM
 	bool "host riscv-isa-sim"
-	depends on BR2_HOST_GCC_AT_LEAST_4_9 # C++1
+	depends on BR2_HOST_GCC_AT_LEAST_4_9 # C++11
 	help
 	  Spike, the RISC-V ISA Simulator, implements a functional
 	  model of one or more RISC-V harts.