feat(heap): add a MALLOC_CAP_SIMD flag

MALLOC_CAP_SIMD can be used to allocate memory to be used for SIMD instructions

components/soc/esp32s3/include/soc/Kconfig.soc_caps.in

@@ -243,6 +243,10 @@ config SOC_PM_SUPPORTED
     bool
     default y
 
+config SOC_SIMD_INSTRUCTION_SUPPORTED
+    bool
+    default y
+
 config SOC_XTAL_SUPPORT_40M
     bool
     default y
@@ -395,6 +399,10 @@ config SOC_CPU_WATCHPOINT_MAX_REGION_SIZE
     int
     default 64
 
+config SOC_SIMD_PREFERRED_DATA_ALIGNMENT
+    int
+    default 16
+
 config SOC_DS_SIGNATURE_MAX_BIT_LEN
     int
     default 4096

components/soc/esp32s3/include/soc/soc_caps.h

@@ -82,6 +82,7 @@
 #define SOC_DEEP_SLEEP_SUPPORTED        1
 #define SOC_LP_PERIPH_SHARE_INTERRUPT   1   // LP peripherals sharing the same interrupt source
 #define SOC_PM_SUPPORTED                1
+#define SOC_SIMD_INSTRUCTION_SUPPORTED  1
 
 /*-------------------------- XTAL CAPS ---------------------------------------*/
 #define SOC_XTAL_SUPPORT_40M            1
@@ -148,6 +149,8 @@
 #define SOC_CPU_WATCHPOINTS_NUM             2
 #define SOC_CPU_WATCHPOINT_MAX_REGION_SIZE  64 // bytes
 
+#define SOC_SIMD_PREFERRED_DATA_ALIGNMENT 16 // The preferred data alignment accepted by the SIMD instructions, in bytes
+
 /*-------------------------- DIGITAL SIGNATURE CAPS ----------------------------------------*/
 /** The maximum length of a Digital Signature in bits. */
 #define SOC_DS_SIGNATURE_MAX_BIT_LEN (4096)