riscv: G extension implies Zicsr & Zifencei

So, add the corresponding flags.

Signed-off-by: Luc Van Oostenryck <lucvoo@kernel.org>
diff --git a/target-riscv.c b/target-riscv.c
index d90f45a..d30be04 100644
--- a/target-riscv.c
+++ b/target-riscv.c
@@ -16,7 +16,7 @@
 #define RISCV_COMP	(1 << 8)
 #define RISCV_EMBD	(1 << 9)
 #define RISCV_FPU	(RISCV_FLOAT|RISCV_DOUBLE|RISCV_FDIV)
-#define RISCV_GENERIC	(RISCV_MUL|RISCV_DIV|RISCV_ATOMIC|RISCV_FPU)
+#define RISCV_GENERIC	(RISCV_MUL|RISCV_DIV|RISCV_ATOMIC|RISCV_FPU|RISCV_ZICSR|RISCV_ZIFENCEI)
 #define RISCV_ZICSR	(1 << 10)
 #define RISCV_ZIFENCEI	(1 << 11)
 #define RISCV_ZICBOM	(1 << 12)