Use proper cast

Casting to `void**` silences the compiler, but only works because that
is dereferenced to a generic `void*`.

Author: cmb69

ext/opcache/jit/zend_jit_x86.dasc

@@ -2901,7 +2901,7 @@ static int zend_jit_setup(void)
 	/* To find offset of "_tsrm_ls_cache" in TLS segment we perform a linear scan of local TLS memory */
 	/* Probably, it might be better solution */
 	do {
-		void ***tls_mem = ((void**)__readgsqword(0x58))[_tls_index];
+		void ***tls_mem = ((void****)__readgsqword(0x58))[_tls_index];
 		void *val = _tsrm_ls_cache;
 		size_t offset = 0;
 		size_t size = (char*)&_tls_end - (char*)&_tls_start;
@@ -2925,7 +2925,7 @@ static int zend_jit_setup(void)
 	/* To find offset of "_tsrm_ls_cache" in TLS segment we perform a linear scan of local TLS memory */
 	/* Probably, it might be better solution */
 	do {
-		void ***tls_mem = ((void**)__readfsdword(0x2c))[_tls_index];
+		void ***tls_mem = ((void****)__readfsdword(0x2c))[_tls_index];
 		void *val = _tsrm_ls_cache;
 		size_t offset = 0;
 		size_t size = (char*)&_tls_end - (char*)&_tls_start;