video: lowercase some video backend names.

src/video/android/SDL_androidvideo.c

@@ -40,7 +40,7 @@
 #include "SDL_androidvulkan.h"
 #include "SDL_androidmessagebox.h"
 
-#define ANDROID_VID_DRIVER_NAME "Android"
+#define ANDROID_VID_DRIVER_NAME "android"
 
 /* Initialization/Query functions */
 static int Android_VideoInit(SDL_VideoDevice *_this);

src/video/kmsdrm/SDL_kmsdrmvideo.c

@@ -326,7 +326,7 @@ cleanup:
 }
 
 VideoBootStrap KMSDRM_bootstrap = {
-    "KMSDRM",
+    "kmsdrm",
     "KMS/DRM Video Driver",
     KMSDRM_CreateDevice,
     NULL /* no ShowMessageBox implementation */

src/video/ps2/SDL_ps2video.c

@@ -111,7 +111,7 @@ static SDL_VideoDevice *PS2_CreateDevice(void)
 }
 
 VideoBootStrap PS2_bootstrap = {
-    "PS2",
+    "ps2",
     "PS2 Video Driver",
     PS2_CreateDevice,
     NULL /* no ShowMessageBox implementation */

src/video/psp/SDL_pspvideo.c

@@ -116,7 +116,7 @@ static SDL_VideoDevice *PSP_Create()
 }
 
 VideoBootStrap PSP_bootstrap = {
-    "PSP",
+    "psp",
     "PSP Video Driver",
     PSP_Create,
     NULL /* no ShowMessageBox implementation */

src/video/raspberry/SDL_rpivideo.c

@@ -126,7 +126,7 @@ static SDL_VideoDevice *RPI_Create()
 }
 
 VideoBootStrap RPI_bootstrap = {
-    "RPI",
+    "rpi",
     "RPI Video Driver",
     RPI_Create,
     NULL /* no ShowMessageBox implementation */

src/video/vita/SDL_vitavideo.c

@@ -157,7 +157,7 @@ static SDL_VideoDevice *VITA_Create()
 }
 
 VideoBootStrap VITA_bootstrap = {
-    "VITA",
+    "vita",
     "VITA Video Driver",
     VITA_Create,
     VITA_ShowMessageBox