Fix building of SDIO code for CONFIG_MMC=m or CONFIG_MMC=y.

Makefile

@@ -77,7 +77,7 @@ endif
 obj-m      += rtw_8822bu.o
 rtw_8822bu-objs		:= rtw8822bu.o
 
-ifeq ($(CONFIG_MMC), y)
+ifneq ($(CONFIG_MMC), )
 obj-m	   += rtw_8822bs.o
 rtw_8822bs-objs		:= rtw8822bs.o
 endif
@@ -102,7 +102,7 @@ rtw_8703b-objs		:= rtw8703b.o rtw8703b_tables.o
 obj-m	   += rtw_8723x.o
 rtw_8723x-objs		:= rtw8723x.o
 
-ifeq ($(CONFIG_MMC), y)
+ifneq ($(CONFIG_MMC), )
 obj-m	   += rtw_8822cs.o
 rtw_8822cs-objs		:= rtw8822cs.o
 
@@ -121,7 +121,7 @@ endif
 obj-m      += rtw_8723du.o
 rtw_8723du-objs		:= rtw8723du.o
 
-ifeq ($(CONFIG_MMC), y)
+ifneq ($(CONFIG_MMC), )
 obj-m      += rtw_8723ds.o
 rtw_8723ds-objs		:= rtw8723ds.o
 endif
@@ -143,7 +143,7 @@ rtw_8821au-objs		:= rtw8821au.o
 obj-m	   += rtw_8812au.o
 rtw_8812au-objs		:= rtw8812au.o
 
-ifeq ($(CONFIG_MMC), y)
+ifneq ($(CONFIG_MMC), )
 obj-m	   += rtw_8821cs.o
 rtw_8821cs-objs		:= rtw8821cs.o
 endif
@@ -156,7 +156,7 @@ obj-m			+= rtw_pci.o
 rtw_pci-objs		:= pci.o
 endif
 
-ifeq ($(CONFIG_MMC), y)
+ifneq ($(CONFIG_MMC), )
 obj-m			+= rtw_sdio.o
 rtw_sdio-objs		:= sdio.o
 endif