riscv: ax25: cache: Remove SPL_RISCV_MMODE config check

CONFIG_IS_ENABLED(FOO) will check FOO config option for U-Boot,
SPL and TPL, so remove unnecessary CONFIG_IS_ENABLED()

Signed-off-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/riscv/cpu/ax25/cache.c b/arch/riscv/cpu/ax25/cache.c
index 9f42419..9df629d 100644
--- a/arch/riscv/cpu/ax25/cache.c
+++ b/arch/riscv/cpu/ax25/cache.c
@@ -12,7 +12,7 @@
 #include <asm/csr.h>
 
 #ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE) || CONFIG_IS_ENABLED(SPL_RISCV_MMODE)
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
 /* mcctlcommand */
 #define CCTL_REG_MCCTLCOMMAND_NUM	0x7cc
 
@@ -47,7 +47,7 @@
 {
 #if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
 #ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE) || CONFIG_IS_ENABLED(SPL_RISCV_MMODE)
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
 	csr_write(CCTL_REG_MCCTLCOMMAND_NUM, CCTL_L1D_WBINVAL_ALL);
 #endif
 #endif
@@ -68,7 +68,7 @@
 {
 #if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
 #ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE) || CONFIG_IS_ENABLED(SPL_RISCV_MMODE)
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
 	asm volatile (
 		"csrr t1, mcache_ctl\n\t"
 		"ori t0, t1, 0x1\n\t"
@@ -83,7 +83,7 @@
 {
 #if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
 #ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE) || CONFIG_IS_ENABLED(SPL_RISCV_MMODE)
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
 	asm volatile (
 		"fence.i\n\t"
 		"csrr t1, mcache_ctl\n\t"
@@ -99,7 +99,7 @@
 {
 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
 #ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE) || CONFIG_IS_ENABLED(SPL_RISCV_MMODE)
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
 	asm volatile (
 		"csrr t1, mcache_ctl\n\t"
 		"ori t0, t1, 0x2\n\t"
@@ -117,7 +117,7 @@
 {
 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
 #ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE) || CONFIG_IS_ENABLED(SPL_RISCV_MMODE)
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
 	csr_write(CCTL_REG_MCCTLCOMMAND_NUM, CCTL_L1D_WBINVAL_ALL);
 	asm volatile (
 		"csrr t1, mcache_ctl\n\t"
@@ -137,7 +137,7 @@
 	int ret = 0;
 
 #ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE) || CONFIG_IS_ENABLED(SPL_RISCV_MMODE)
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
 	asm volatile (
 		"csrr t1, mcache_ctl\n\t"
 		"andi	%0, t1, 0x01\n\t"
@@ -156,7 +156,7 @@
 	int ret = 0;
 
 #ifdef CONFIG_RISCV_NDS_CACHE
-#if CONFIG_IS_ENABLED(RISCV_MMODE) || CONFIG_IS_ENABLED(SPL_RISCV_MMODE)
+#if CONFIG_IS_ENABLED(RISCV_MMODE)
 	asm volatile (
 		"csrr t1, mcache_ctl\n\t"
 		"andi	%0, t1, 0x02\n\t"