spi: qup: Depend on ARM && COMPILE_TEST to avoid build error
spi: qup: Depend on ARM && COMPILE_TEST to avoid build error

This driver uses writel_relaxed() which does not exist in x86, ppc, etc.
Make it depend on ARM && COMPILE_TEST to avoid below build error:

  CC [M]  drivers/spi/spi-qup.o
drivers/spi/spi-qup.c: In function 'spi_qup_set_state':
drivers/spi/spi-qup.c:180:3: error: implicit declaration of function 'writel_relaxed' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[2]: *** [drivers/spi/spi-qup.o] Error 1
make[1]: *** [drivers/spi] Error 2
make: *** [drivers] Error 2

Reported-by: Stephen Rothwell <4bf0fb350827ce8d86875e76c923a478597c3cef@canb.auug.org.au>
Signed-off-by: Axel Lin <b6ffd6973e972cb999e8e535ab74da7fee0c035f@ingics.com>
Signed-off-by: Mark Brown <b51b9a92386687a9ac927cebfa0f978adeb8cea5@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs