Without QCOM_SCM, build failed, avoid like below:

aarch64-linux-gnu-ld: Unexpected GOT/PLT entries detected!
aarch64-linux-gnu-ld: Unexpected run-time procedure linkages detected!
aarch64-linux-gnu-ld: drivers/thermal/qcom/lmh.o: in function `lmh_probe':
/data/arm/workspace/kernel-build/linux/build/../drivers/thermal/qcom/lmh.c:141: undefined reference to `qcom_scm_lmh_dcvsh_available'
aarch64-linux-gnu-ld: /data/arm/workspace/kernel-build/linux/build/../drivers/thermal/qcom/lmh.c:144: undefined reference to `qcom_scm_lmh_dcvsh'
aarch64-linux-gnu-ld: /data/arm/workspace/kernel-build/linux/build/../drivers/thermal/qcom/lmh.c:149: undefined reference to `qcom_scm_lmh_dcvsh'
aarch64-linux-gnu-ld: /data/arm/workspace/kernel-build/linux/build/../drivers/thermal/qcom/lmh.c:154: undefined reference to `qcom_scm_lmh_dcvsh'
aarch64-linux-gnu-ld: /data/arm/workspace/kernel-build/linux/build/../drivers/thermal/qcom/lmh.c:159: undefined reference to `qcom_scm_lmh_dcvsh'
aarch64-linux-gnu-ld: /data/arm/workspace/kernel-build/linux/build/../drivers/thermal/qcom/lmh.c:166: undefined reference to `qcom_scm_lmh_profile_change'
aarch64-linux-gnu-ld: /data/arm/workspace/kernel-build/linux/build/../drivers/thermal/qcom/lmh.c:173: undefined reference to `qcom_scm_lmh_dcvsh'
aarch64-linux-gnu-ld: /data/arm/workspace/kernel-build/linux/build/../drivers/thermal/qcom/lmh.c:180: undefined reference to `qcom_scm_lmh_dcvsh'
aarch64-linux-gnu-ld: /data/arm/workspace/kernel-build/linux/build/../drivers/thermal/qcom/lmh.c:187: undefined reference to `qcom_scm_lmh_dcvsh'
make[1]: *** [/data/arm/workspace/kernel-build/linux/Makefile:1183: vmlinux] Error 1
make[1]: Leaving directory '/data/arm/workspace/kernel-build/linux/build'
make: *** [Makefile:219: __sub-make] Error 2
make: Leaving directory '/data/arm/workspace/kernel-build/linux'

Fixes: 53bca371 ("thermal/drivers/qcom: Add support for LMh driver")
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Link: https://lore.kernel.org/r/20211009015853.3509559-1-liu.yun@linux.devSigned-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>