flashfs: fix alignment ambiguity

Instead of ignoring the warnings.
Thanks to @Ole2mail and @yuhaim for the suggestions.

src/lib/parameters/flashparams/CMakeLists.txt

@@ -42,7 +42,6 @@ target_compile_options(flashparams
 	PRIVATE
 		-Wno-sign-compare # TODO: fix this
 		-Wno-cast-align # TODO: fix and enable
-		-Wno-address-of-packed-member # TODO: fix this
 )
 
 target_link_libraries(flashparams PRIVATE nuttx_arch)

src/lib/parameters/flashparams/flashfs.c

@@ -86,11 +86,10 @@ typedef enum  flash_flags_t {
 } flash_flags_t;
 
 
-/* File flash_entry_header_t will be sizeof(h_magic_t) aligned
+/* The struct flash_entry_header_t will be sizeof(uint32_t) aligned
  * The Size will be the actual length of the header plus the data
  * and any padding needed to have the size be an even multiple of
- * sizeof(h_magic_t)
- *  The
+ * sizeof(uint32_t)
  */
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wattributes"
@@ -102,7 +101,7 @@ typedef begin_packed_struct struct flash_entry_header_t {
                                                * Will result the offset of the next active file or
                                                * free space. */
 	flash_file_token_t   file_token;      /* file token type - essentially the name/type */
-} end_packed_struct flash_entry_header_t;
+} end_packed_struct flash_entry_header_t __attribute__((aligned(sizeof(uint32_t))));
 #pragma GCC diagnostic pop
 
 /****************************************************************************