ARM: 6720/1: SPEAr: Append UL to VMALLOC_END

This patch fixes following warning:
arch/arm/mm/init.c:606: warning: format '%08lx' expects type 'long unsigned int', but argument 12 has type 'unsigned int'

by appending UL to VMALLOC_END's Number.
Reviewed-by: NStanley Miao <stanley.miao@windriver.com>
Signed-off-by: NViresh Kumar <viresh.kumar@st.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

arch/arm/plat-spear/include/plat/vmalloc.h

@@ -14,6 +14,6 @@
 #ifndef __PLAT_VMALLOC_H
 #define __PLAT_VMALLOC_H
 
-#define VMALLOC_END		0xF0000000
+#define VMALLOC_END		0xF0000000UL
 
 #endif /* __PLAT_VMALLOC_H */