At present spi_flash_cmd_read_ops() allocates and frees a few bytes of
memory every time it is called. It is faster to use the stack for this
and this is now supported by the minimum GCC version required by U-Boot.

Remove the allocation and use a variable-sized array instead.

Signed-off-by: Simon Glass <s...@chromium.org>
---

 drivers/mtd/spi/spi_flash.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

Applied to u-boot-dm
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