Replace all uses of PLUGIN_USE_IRAM with USE_IRAM

PLUGIN_USE_IRAM is almost equivalent to USE_IRAM except
that USE_IRAM might be defined in core, but not plugins.
All remaining uses of PLUGIN_USE_IRAM are inside plugins,
however, so there is no point keeping both defines around.

Change-Id: I6902c85651f3d82b7d19ea32eaa60fc5c19eded7

apps/plugins/pacbox/pacbox.c

@@ -387,7 +387,7 @@ static void start_sound(void)
     if (sound_playing)
         return;
 
-#ifndef PLUGIN_USE_IRAM
+#ifndef USE_IRAM
     /* Ensure control of PCM - stopping music itn't obligatory */
     rb->plugin_get_audio_buffer(NULL);
 #endif

apps/plugins/pitch_detector.c

@@ -248,7 +248,7 @@ static volatile int audio_tail = 0; /* which of the two buffers to record? */
 #ifndef SIMULATOR
 static int16_t audio_data[2][BUFFER_SIZE] MEM_ALIGN_ATTR;
 static fixed yin_buffer[YIN_BUFFER_SIZE] IBSS_ATTR;
-#ifdef PLUGIN_USE_IRAM
+#ifdef USE_IRAM
 static int16_t iram_audio_data[BUFFER_SIZE] IBSS_ATTR;
 #else
 #define iram_audio_data audio_data[audio_head]
@@ -1047,7 +1047,7 @@ static void record_and_get_pitch(void)
             #ifdef HAVE_SCHEDULER_BOOSTCTRL
                 rb->trigger_cpu_boost();
             #endif
-#ifdef PLUGIN_USE_IRAM
+#ifdef USE_IRAM
                 rb->memcpy(iram_audio_data, audio_data[audio_head],
                            settings.sample_size * sizeof (int16_t));
 #endif

apps/plugins/plugin_crt0.c

@@ -74,7 +74,7 @@ enum plugin_status plugin__start(const void *param)
 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
 
 /* IRAM must be copied before clearing the BSS ! */
-#ifdef PLUGIN_USE_IRAM
+#ifdef USE_IRAM
     extern char iramcopy[], iramstart[], iramend[], iedata[], iend[];
     size_t iram_size = iramend - iramstart;
     size_t ibss_size = iend - iedata;
@@ -92,7 +92,7 @@ enum plugin_status plugin__start(const void *param)
          */
         asm volatile ("" ::: "memory");
     }
-#endif /* PLUGIN_USE_IRAM */
+#endif /* USE_IRAM */
 
     /* zero out the bss section */
     rb->memset(plugin_bss_start, 0, plugin_end_addr - plugin_bss_start);

apps/plugins/test_mem.c

@@ -36,7 +36,7 @@
 static int loop_repeat_dram = LOOP_REPEAT_DRAM;
 static volatile int buf_dram[BUF_SIZE]           MEM_ALIGN_ATTR;
 
-#if defined(PLUGIN_USE_IRAM)
+#if defined(USE_IRAM)
 
 #if PLUGIN_BUFFER_SIZE <= 0x8000
 #define IBUF_SIZE (1<<12) /* 16 KB = (1<<12)*sizeof(int) */
@@ -231,7 +231,7 @@ enum plugin_status plugin_start(const void* parameter)
         ret |= test(buf_dram, BUF_SIZE, loop_repeat_dram, MEMSET);
         ret |= test(buf_dram, BUF_SIZE, loop_repeat_dram, MEMCPY);
         if (ret != 0 && loop_repeat_dram < MAX_REPEAT_DRAM) loop_repeat_dram *= 2;
-#if defined(PLUGIN_USE_IRAM)
+#if defined(USE_IRAM)
         TEST_MEM_PRINTF("IRAM cnt: %d size: %d MB", loop_repeat_iram, 
             (loop_repeat_iram*BUF_SIZE*sizeof(buf_iram[0]))>>20);
         ret = 0;

firmware/export/config.h

@@ -1187,12 +1187,10 @@ Lyre prototype 1 */
     (CONFIG_CPU == PNX0101) || \
     (CONFIG_CPU == TCC7801)
 # define USE_IRAM
-# define PLUGIN_USE_IRAM
 
 /* AS3525 +2MB: core, plugins, codecs */
 #elif (CONFIG_CPU == AS3525) && (MEMORYSIZE > 2) && !defined(BOOTLOADER)
 # define USE_IRAM
-# define PLUGIN_USE_IRAM
 
 /* AS3525 2MB: core only */
 #elif (CONFIG_CPU == AS3525) && (MEMORYSIZE <= 2) && !defined(BOOTLOADER) && \