ARM: platform fixups: remove mdesc argument to fixup function

Get rid of the mdesc pointer in the fixup function call.  No one uses
the mdesc pointer, it shouldn't be modified anyway, and we can't wrap
it, so let's remove it.

Platform files found by:

  $ regexp=$(git grep -h '\.fixup.*=' arch/arm |
		sed 's!.*= *\([^,]*\),* *!\1!' | sort -u |
		tr '\n' '|' | sed 's,|$,,;s,|,\\|,g')
  $ git grep $regexp arch/arm

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-tegra/board-trimslice.c b/arch/arm/mach-tegra/board-trimslice.c
index 89a6d2a..652c340 100644
--- a/arch/arm/mach-tegra/board-trimslice.c
+++ b/arch/arm/mach-tegra/board-trimslice.c
@@ -126,8 +126,8 @@
 	platform_device_register(&tegra_ehci1_device);
 }
 
-static void __init tegra_trimslice_fixup(struct machine_desc *desc,
-	struct tag *tags, char **cmdline, struct meminfo *mi)
+static void __init tegra_trimslice_fixup(struct tag *tags, char **cmdline,
+	struct meminfo *mi)
 {
 	mi->nr_banks = 2;
 	mi->bank[0].start = PHYS_OFFSET;