i2c: qup: fix building without CONFIG_ACPI

The added Centriq support broke compilation with CONFIG_ACPI disabled:

drivers/i2c/busses/i2c-qup.c: In function 'qup_i2c_probe':
drivers/i2c/busses/i2c-qup.c:1707:25: error: 'qup_i2c_acpi_match' undeclared (first use in this function); did you mean 'qup_i2c_recv_data'?

This fixes it by removing the extraneous #ifdef. All ACPI specific
code will be dropped implicitly when that option is disabled, but
the compiler first needs to see it.

Fixes: 902a91a0

 ("i2c: qup: add probe path for Centriq ACPI devices")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Austin Christ <austinwc@codeaurora.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>