build: fix build for gcc-4.9

Change-Id: I2ad9dd0f32383aa0f8c5dac08edc86bee59af6fe
Signed-off-by: shuide.chen <shuide.chen@amlogic.com>

drivers/amlogic/memory_ext/vmap_stack.c

@@ -445,7 +445,7 @@ static void check_sp_fault_again(struct pt_regs *regs)
 {
 	unsigned long sp = 0, addr;
 	struct page *page;
-	int cache;
+	int cache = 0;
 
 #ifdef CONFIG_ARM
 	sp = regs->ARM_sp;

sound/soc/codecs/amlogic/tas5805.c

@@ -649,10 +649,10 @@ const uint32_t tas5805m_volume[] = {
 #define TAS5805_EQPARAM_LENGTH 610
 #define TAS5805_EQ_LENGTH 245
 #define FILTER_PARAM_BYTE 244
-static  int m_eq_tab[TAS5805_EQPARAM_LENGTH][2] = {0};
+static  int m_eq_tab[TAS5805_EQPARAM_LENGTH][2];
 #define TAS5805_DRC_PARAM_LENGTH 29
 #define TAS5805_DRC_PARAM_COUNT  58
-static  int m_drc_tab[TAS5805_DRC_PARAM_LENGTH][2] = {0};
+static  int m_drc_tab[TAS5805_DRC_PARAM_LENGTH][2];
 
 struct tas5805m_priv {
 	struct regmap *regmap;