Fix build on Alpine edge (#45352)

The atoll definition in the pal.h was leaking into the PAL implementation and
on Alpine edge, the difference in throws() classification was causing a build
break.

src/coreclr/src/pal/src/include/pal/palinternal.h

@@ -170,6 +170,7 @@ function_name() to call the system's implementation
 #define memset DUMMY_memset
 #define memmove DUMMY_memmove
 #define memchr DUMMY_memchr
+#define atoll DUMMY_atoll
 #define strlen DUMMY_strlen
 #define stricmp DUMMY_stricmp
 #define strstr DUMMY_strstr
@@ -357,6 +358,7 @@ function_name() to call the system's implementation
 #undef memset
 #undef memmove
 #undef memchr
+#undef atoll
 #undef strlen
 #undef strnlen
 #undef wcsnlen