riscv/addrenv: Fix the user VMA end address
The end address was off by 1, making it overflow to 0 (u32 value).
diff --git a/arch/risc-v/src/common/addrenv.h b/arch/risc-v/src/common/addrenv.h
index 8cb949a..7be666e 100644
--- a/arch/risc-v/src/common/addrenv.h
+++ b/arch/risc-v/src/common/addrenv.h
@@ -58,7 +58,7 @@
/* User address environment end */
-#define ARCH_ADDRENV_VEND (ARCH_ADDRENV_VBASE + ARCH_ADDRENV_MAX_SIZE)
+#define ARCH_ADDRENV_VEND (ARCH_ADDRENV_VBASE + ARCH_ADDRENV_MAX_SIZE - 1)
/****************************************************************************
* Public Function Prototypes
