[KEYBOARD] Rename kbdgr1.dll to kbdgrist.dll

kbdgr1.dll is reserved for the German (IBM) keyboard layout but it is currently used by the German (RISTOME) keyboard layout.

boot/bootdata/hivesys.inf

@@ -528,7 +528,7 @@ HKLM,"SYSTEM\CurrentControlSet\Control\Keyboard Layouts\00020407","Layout File",
 HKLM,"SYSTEM\CurrentControlSet\Control\Keyboard Layouts\00020407","Layout Text",0x00000000,%GERMAN_NEO%
 HKLM,"SYSTEM\CurrentControlSet\Control\Keyboard Layouts\00020407","Layout Display Name",0x00000000,"@%SystemRoot%\system32\input.dll,-5138"
 
-HKLM,"SYSTEM\CurrentControlSet\Control\Keyboard Layouts\00010407","Layout File",0x00000000,"kbdgr1.dll"
+HKLM,"SYSTEM\CurrentControlSet\Control\Keyboard Layouts\00010407","Layout File",0x00000000,"kbdgrist.dll"
 HKLM,"SYSTEM\CurrentControlSet\Control\Keyboard Layouts\00010407","Layout Id",  0x00000000,"0012"
 HKLM,"SYSTEM\CurrentControlSet\Control\Keyboard Layouts\00010407","Layout Text",0x00000000,%GERMAN_RISTOME%
 HKLM,"SYSTEM\CurrentControlSet\Control\Keyboard Layouts\00010407","Layout Display Name",0x00000000,"@%SystemRoot%\system32\input.dll,-5137"

boot/bootdata/txtsetup.sif

@@ -577,7 +577,7 @@ Default = "XT-, AT- or extended keyboard (83-105 keys)"
 00000406 = kbdda.dll
 00000407 = kbdgr.dll
 00000807 = kbdsg.dll
-00010407 = kbdgr1.dll
+00010407 = kbdgrist.dll
 00020407 = kbdgneo.dll
 00030407 = kbdgerg.dll
 00000408 = kbdhe.dll

dll/keyboard/CMakeLists.txt

@@ -30,7 +30,7 @@ list(APPEND _keyboard_layouts
     kbdgerg
     kbdgneo
     kbdgr
-    kbdgr1
+    kbdgrist
     kbdhe
     kbdheb
     kbdhu