ASoC: Intel: avs: Fix debug window description

Recent changes addressed PAGE_SIZE ambiguity in 2/3 locations for struct
avs_icl_memwnd2. The unaddressed one causes build errors when
PAGE_SIZE != SZ_4K.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202404070100.i3t3Jf7d-lkp@intel.com/
Fixes: 275b583d ("ASoC: Intel: avs: ICL-based platforms support")
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://msgid.link/r/20240408081840.1319431-1-cezary.rojewski@intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/avs/icl.c

@@ -64,7 +64,7 @@ struct avs_icl_memwnd2_desc {
 struct avs_icl_memwnd2 {
 	union {
 		struct avs_icl_memwnd2_desc slot_desc[AVS_ICL_MEMWND2_SLOTS_COUNT];
-		u8 rsvd[PAGE_SIZE];
+		u8 rsvd[SZ_4K];
 	};
 	u8 slot_array[AVS_ICL_MEMWND2_SLOTS_COUNT][PAGE_SIZE];
 } __packed;