kernel: generic: 5.15: allow to choose QCOM_QMI_HELPERS

QMI helpers are required by ath11k, but the symbol is not user selectable
as usually ath11k itself will just select the symbol.
This doesnt work in our case as backports cannot do the same, you can
only depend on a symbol.

So to allow building in OpenWrt, lets make the symbol selectable again
so it can be packaged as a kmod and added as a dependency to ath11k.

Disable the symbol in the generic config so that builds dont get broken
by the build system asking whether to enable the symbol on each build.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@gmail.com>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>

target/linux/generic/config-5.15

@@ -4842,6 +4842,7 @@ CONFIG_PWRSEQ_SIMPLE=y
 # CONFIG_QCOM_HIDMA_MGMT is not set
 # CONFIG_QCOM_LMH is not set
 # CONFIG_QCOM_QDF2400_ERRATUM_0065 is not set
+# CONFIG_QCOM_QMI_HELPERS is not set
 # CONFIG_QCOM_SPMI_ADC5 is not set
 # CONFIG_QCOM_SPMI_ADC_TM5 is not set
 # CONFIG_QCOM_SPMI_IADC is not set

target/linux/generic/pending-5.15/930-qcom-qmi-helpers.patch

@@ -0,0 +1,11 @@
+--- a/drivers/soc/qcom/Kconfig
++++ b/drivers/soc/qcom/Kconfig
+@@ -92,7 +92,7 @@ config QCOM_PDR_HELPERS
+ 	select QCOM_QMI_HELPERS
+
+ config QCOM_QMI_HELPERS
+-	tristate
++	tristate "Qualcomm QMI Helpers"
+ 	depends on NET
+
+ config QCOM_RMTFS_MEM