Add GRUB configuration files to baseline and releng profiles.

configs/baseline/grub/grub.cfg

+insmod part_gpt
+insmod part_msdos
+insmod fat
+insmod iso9660
+
+insmod all_video
+
+insmod font
+
+if loadfont "${prefix}/fonts/unicode.pf2" ; then
+    insmod gfxterm
+    set gfxmode="auto"
+    terminal_input console
+    terminal_output gfxterm
+fi
+
+menuentry "Arch Linux (x86_64, UEFI)" {
+    set gfxpayload=keep
+    search --no-floppy --set=root --label %ARCHISO_LABEL%
+    linux /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% 
+    initrd /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
+}
+
+menuentry "Arch Linux (x86_64, UEFI) Copy to RAM" {
+    set gfxpayload=keep
+    search --no-floppy --set=root --label %ARCHISO_LABEL%
+    linux /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% copytoram
+    initrd /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
+}

configs/releng/grub/grub.cfg

+insmod part_gpt
+insmod part_msdos
+insmod fat
+insmod iso9660
+
+insmod all_video
+
+insmod font
+
+if loadfont "${prefix}/fonts/unicode.pf2" ; then
+    insmod gfxterm
+    set gfxmode="auto"
+    terminal_input console
+    terminal_output gfxterm
+fi
+
+# GRUB init tune for accessibility
+#
+# Morse translation table:
+# "." is "500 1 300 1"
+# "-" is "600 3 300 1"
+# " " is "100 2"
+# "/" is "100 5"
+#
+# Message: "s for blind"
+play 500 500 1 300 1 500 1 300 1 500 1 300 1 100 5 500 1 300 1 500 1 300 1 100 2 500 1 300 1 500 1 300 1 600 3 300 1 500 1 300 1 100 5 600 3 300 1 500 1 300 1 500 1 300 1 500 1 300 1 100 2 500 1 300 1 600 3 300 1 500 1 300 1 500 1 300 1 100 2 500 1 300 1 500 1 300 1 100 2 500 1 300 1 500 1 300 1 100 2 600 3 300 1 500 1 300 1 100 2 600 3 300 1 500 1 300 1 500 1 300 1
+
+menuentry "Arch Linux install medium (x86_64, UEFI)" {
+    set gfxpayload=keep
+    search --no-floppy --set=root --label %ARCHISO_LABEL%
+    linux /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% 
+    initrd /%INSTALL_DIR%/boot/intel-ucode.img /%INSTALL_DIR%/boot/amd-ucode.img /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
+}
+
+menuentry "Arch Linux install medium with speakup screen reader (x86_64, UEFI)" --hotkey=s {
+    set gfxpayload=keep
+    search --no-floppy --set=root --label %ARCHISO_LABEL%
+    linux /%INSTALL_DIR%/boot/x86_64/vmlinuz-linux archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% accessibility=on
+    initrd /%INSTALL_DIR%/boot/intel-ucode.img /%INSTALL_DIR%/boot/amd-ucode.img /%INSTALL_DIR%/boot/x86_64/initramfs-linux.img
+}
+
+menuentry "UEFI Shell" {
+	insmod chain
+        search --no-floppy --set=root --label %ARCHISO_LABEL%
+	chainloader /shellia32.efi
+}