ARM: 8860/1: VDSO: Drop implicit common-page-size linker flag

GNU linker's -z common-page-size's default value is based on the target
architecture. arch/arm/vdso/Makefile sets it to the architecture
default, which is implicit and redundant. Drop it.

Link: https://lkml.kernel.org/r/20181206191231.192355-1-ndesaulniers@google.com

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Nathan Lynch <nathanl@linux.ibm.com>
Suggested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

arch/arm/vdso/Makefile

@@ -11,8 +11,7 @@ ccflags-y := -fPIC -fno-common -fno-builtin -fno-stack-protector
 ccflags-y += -DDISABLE_BRANCH_PROFILING
 
 ldflags-y = -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \
-	    -z max-page-size=4096 -z common-page-size=4096 \
-	    -nostdlib -shared \
+	    -z max-page-size=4096 -nostdlib -shared \
 	    $(call ld-option, --hash-style=sysv) \
 	    $(call ld-option, --build-id) \
 	    -T