bitstream: fix BIT_readBits and BIT_reloadDStream prototypes

Align the declarations of BIT_readBits() and BIT_reloadDStream() in
bitstream.h with their FORCE_INLINE_TEMPLATE definitions.

The previous MEM_STATIC declarations caused an attribute mismatch
between the header and the definitions, which can lead to incorrect
compiler assumptions under certain toolchains and optimization levels.

Signed-off-by: Alexander Moch <mail@alexmoch.com>

Author: alex-moch

lib/common/bitstream.h

@@ -102,8 +102,8 @@ typedef enum { BIT_DStream_unfinished = 0,  /* fully refilled */
     } BIT_DStream_status;  /* result of BIT_reloadDStream() */
 
 MEM_STATIC size_t   BIT_initDStream(BIT_DStream_t* bitD, const void* srcBuffer, size_t srcSize);
-MEM_STATIC BitContainerType BIT_readBits(BIT_DStream_t* bitD, unsigned nbBits);
-MEM_STATIC BIT_DStream_status BIT_reloadDStream(BIT_DStream_t* bitD);
+FORCE_INLINE_TEMPLATE BitContainerType BIT_readBits(BIT_DStream_t* bitD, unsigned nbBits);
+FORCE_INLINE_TEMPLATE BIT_DStream_status BIT_reloadDStream(BIT_DStream_t* bitD);
 MEM_STATIC unsigned BIT_endOfDStream(const BIT_DStream_t* bitD);